Objective The vertical pendulum, such as that developed by ONERA, 12 uses gravity to generate a restoring torque; therefore, it has a fast response to thrust due to the larger stiffness. How To Find Acceleration Due To Gravity Using Bar Pendulum Determination of Acceleration Due To Gravity in Katagum Local Government Area of Bauchi State, Solved Problems in Classical Physics An Exercise Book, 1000-Solved-Problems-in-Classical-Physics-An-Exercise-Book.pdf, Fisica Universitaria Sears Zemansky 13va edicion Solucionario 20190704 5175 1ci01va, FIRST YEAR PHYSICS LABORATORY (P141) MANUAL LIST OF EXPERIMENTS 2015-16, Classical Mechanics: a Critical Introduction, SOLUTION MANUAL marion classical dynamics, Soluo Marion, Thornton Dinmica Clssica de Partculas e Sistemas, Waves and Oscillations 2nd Ed by R. N. Chaudhuri.pdf, Lecture Notes on Physical Geodesy UPC 2011, Pratical physics by dr giasuddin ahmed and md shahabuddin www euelibrary com, Practical physics by dr giasuddin ahmad and md shahabudin, Practical Physics for Degree Students - Gias Uddin and Shahabuddin, Classical Mechanics An introductory course, Fsica Universitaria Vol. This is consistent with the fact that our measured periods are systematically higher. The bar can be hung from any one of these holes allowing us to change the location of the pivot. Note that for a simple pendulum, the moment of inertia is I = \(\int\)r2dm = mL2 and the period reduces to T = 2\(\pi \sqrt{\frac{L}{g}}\). To Determine The Value of g Acceleration due to gravity by means of a Surprisingly, the size of the swing does not have much effect on the time per swing . Non-profit, educational or personal use tips the balance in favour of fair use. All of our measured values were systematically lower than expected, as our measured periods were all systematically higher than the \(2.0\text{s}\) that we expected from our prediction. The relative uncertainty on our measured value of \(g\) is \(4.9\)% and the relative difference with the accepted value of \(9.8\text{m/s}^{2}\) is \(22\)%, well above our relative uncertainty. A bar pendulum is a particular case of a compound pendulum. How to Calculate Acceleration Due to Gravity Using a Pendulum %PDF-1.5 Legal. Theory. We and our partners use cookies to Store and/or access information on a device. A Describe how the motion of the pendulums will differ if the bobs are both displaced by 12. gravity by means of a compound pendulum. Which is a negotiable amount of error but it needs to be justified properly. By timing 100 or more swings, the period can be determined to an accuracy of fractions of a millisecond. << Fair use is a use permitted by copyright statute that might otherwise be infringing. We don't put any weight on the last significant figure and this translates to 45.533 cm.5 F. Khnen and P. Furtwngler, Veroff Press Geodat Inst 27, 397 (1906). A torsional pendulum consists of a rigid body suspended by a light wire or spring (Figure \(\PageIndex{3}\)). II Solucionario, The LTP Experiment on LISA Pathfinder: Operational Definition of TT Gauge in Space, Solucionario de Fsica Universitaria I, 12a ed, Fsica Para Ingenieria y Ciencias Ohanian 3ed Solucionario. What is the acceleration due to gravity in a region where a simple pendulum having a length 75.000 cm has a period of 1.7357 s? /F5 18 0 R Consider a coffee mug hanging on a hook in the pantry. Step. Object: To determine the acceleration due to gravity (g) by means of a compound pendulum. Learning Objectives State the forces that act on a simple pendulum Determine the angular frequency, frequency, and period of a simple pendulum in terms of the length of the pendulum and the acceleration due to gravity Define the period for a physical pendulum Define the period for a torsional pendulum Pendulums are in common usage. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. The corresponding value of \(g\) for each of these trials was calculated. In order to minimize the uncertainty in the period, we measured the time for the pendulum to make \(20\) oscillations, and divided that time by \(20\). 4 2/T 2. To determine g, the acceleration of gravity at a particular location.. determine a value of acceleration due to gravity (g) using pendulum motion, [Caution: Students are suggested to consult Lab instructors & teachers before proceeding to avoid any kind of hazard. You can download the paper by clicking the button above. The period, \(T\), of a pendulum of length \(L\) undergoing simple harmonic motion is given by: \[\begin{aligned} T=2\pi \sqrt {\frac{L}{g}}\end{aligned}\]. Pendulums are in common usage. Therefore, all other corrections and systematic errors aside, in principle it is possible to measure g to better than 0.2%. The force providing the restoring torque is the component of the weight of the pendulum bob that acts along the arc length. The period of a simple pendulum depends on its length and the acceleration due to gravity. Manage Settings Use a stopwatch to record the time for 10 complete oscillations. See Full PDF Aim . Consider the torque on the pendulum. How to Calculate an Acceleration Due to Gravity Using the Pendulum Kater's pendulum - Amrita Vishwa Vidyapeetham A pendulum exhibits simple harmonic motion (SHM), which allowed us to measure the gravitational constant by measuring the period of the pendulum. This has a relative difference of \(22\)% with the accepted value and our measured value is not consistent with the accepted value. A 3/4" square 18" long 4 steel bar is supplied for this purpose. In this experiment the value of g, acceleration due gravity by means of compound pendulum is obtained and it is 988.384 cm per sec 2 with an error of 0.752%. << 1 Objectives: The main objective of this experiment is to determine the acceleration due to gravity, g by observing the time period of an oscillating compound pendulum. In this experiment, we measured \(g\) by measuring the period of a pendulum of a known length. An engineer builds two simple pendulums. Kater's pendulum, shown in Fig. In extreme conditions, skyscrapers can sway up to two meters with a frequency of up to 20.00 Hz due to high winds or seismic activity. Useful for B.Sc., B.Tech Students. , How to Calculate Acceleration Due to Gravity Using a Pendulum, Free Printable Periodic Tables (PDF and PNG), Periodic Table with Charges - 118 Elements. The demonstration has historical importance because this used to be the way to measure g before the advent of "falling rule" and "interferometry" methods. The distance between two knife edges can be measured with great precision (0.05cm is easy). If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out. (adsbygoogle = window.adsbygoogle || []).push({});
. Recall that the torque is equal to \(\vec{\tau} = \vec{r} \times \vec{F}\). The angular frequency is, \[\omega = \sqrt{\frac{g}{L}} \label{15.18}\], \[T = 2 \pi \sqrt{\frac{L}{g}} \ldotp \label{15.19}\]. Experiment-4(Compound pendulum) - E4-Name of the experiment - Studocu PDF The Simple Pendulum - University of Tennessee >> This method for determining g can be very accurate, which is why length and period are given to five digits in this example. We thus expect to measure one oscillation with an uncertainty of \(0.025\text{s}\) (about \(1\)% relative uncertainty on the period). The rod oscillates with a period of 0.5 s. What is the torsion constant \(\kappa\)? To Determine the Value of Acceleration Due to Gravity (g) Using Bar Pendulum Spread the love Bar Pendulum Practical File in .pdf Setting up fake worker failed: "Cannot load script at: https://alllabexperiments.com/wp-content/plugins/pdf-embedder/assets/js/pdfjs/pdf.worker.min.js?ver=4.6.4". Thus you get the value of g in your lab setup. A compound pendulum (also known as a physical pendulum) consists of a rigid body oscillating about a pivot. /F10 33 0 R ], ICSE, CBSE class 9 physics problems from Simple Pendulum chapter with solution, How to Determine g in laboratory | Value of acceleration due to gravity -, Simple Harmonic Motion of a Simple Pendulum, velocity of the pendulum bob at the equilibrium position, Transfers between kinetic & potential energy in a simple pendulum, Numerical problem worksheet based on the time period of pendulum, Acceleration, velocity, and displacement of projectile at different points of its trajectory, Satellite & Circular Motion & understanding of Geostationary Satellite. Apparatus used: Bar pendulum, stop watch and meter scale. The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. We repeated this measurement five times. x^][s9v~#2[7U]fLdIP/H*78 @%5e`hg+RjVou+Y+lN;Zmmwg/ z+qV'zePtC};niO(lY_on}f?ASwouQf4|2o}@[@ sqF&. The units for the torsion constant are [\(\kappa\)] = N m = (kg m/s2)m = kg m2/s2 and the units for the moment of inertial are [I] = kg m2, which show that the unit for the period is the second. To determine the acceleration due to gravity 'g' by using bar pendulumBar PendulumBar Pendulum ExperimentCompound Pendulum ExperimentAcceleration due to gravityAcceleration due to gravity using bar pendulumAcceleration due to gravity by using bar pendulumAcceleration due to gravity by using bar pendulum experimentPhysics Experimentbsc Physics Experimentbsc 1st yearbsc 1st year physicsbsc 1st semesterbsc 1st semester physicsWhat is the formula of acceleration due to gravity by bar pendulum?How do we measure g using bar pendulum method?#BarPendulum#CompoundPendulum#Accelerationduetogravityusingbarpendulum#BarPendulumExperiment#CompoundPendulumExperiment#Accelerationduetogravity#PhysicsExperiment#bscPhysicsExperiment#bsc1styear#bsc1styearphysics#bsc1stsemester#bsc1stsemesterphysics#bsc_1st_semester#bsc_1st_semester_physics#PhysicsAffairs For example, it's hard to estimate where exactly the center of the mass is. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. length of a simple pendulum and (5) to determine the acceleration due to gravity using the theory, results, and analysis of this experiment. The torque is the length of the string L times the component of the net force that is perpendicular to the radius of the arc. Set up the apparatus as shown in the diagram: Measure the effective length of the pendulum from the top of the string to the center of the mass bob. We expect that we can measure the time for \(20\) oscillations with an uncertainty of \(0.5\text{s}\). In this experiment, we measured \(g=(7.65\pm 0.378)\text{m/s}^{2}\). /Parent 2 0 R The rod is displaced 10 from the equilibrium position and released from rest. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Kater's pendulum, stopwatch, meter scale and knife edges. Using a simple pendulum, the value of g can be determined by measuring the length L and the period T. The value of T can be obtained with considerable precision by simply timing a large number of swings, but comparable precision in the length of the pendulum is not so easy. Theory The period of a pendulum (T) is related to the length of the string of the pendulum (L) by the equation: T = 2 (L/g) Equipment/apparatus diagram 1 [Caution: Students are suggested to consult Lab instructors & teachers before proceeding to avoid any kind of hazard.]. We first need to find the moment of inertia of the beam. The formula for the period T of a pendulum is T = 2 Square root of L/g, where L is the length of the pendulum and g is the acceleration due to gravity. To Find the Value of Acceleration Due to Gravity (g), Radius of <>stream In an experiment to determine the acceleration due to gravity, s, using a compound pendulum, measurements in the table below were obtained. /F9 30 0 R To overcome this difficulty we can turn a physical pendulum into a so-called reversible (Kater's) 1 pendulum. Using the small angle approximation gives an approximate solution for small angles, \[\frac{d^{2} \theta}{dt^{2}} = - \frac{g}{L} \theta \ldotp \label{15.17}\], Because this equation has the same form as the equation for SHM, the solution is easy to find. >> For the precision of the approximation sin \(\theta\) \(\theta\) to be better than the precision of the pendulum length and period, the maximum displacement angle should be kept below about 0.5. To perform a first-hand investigation using simple pendulum motion to determine a value of acceleration due to the Earthsgravity (g). DONATE if you have found our YouTube/Website work useful. The formula then gives g = 9.8110.015 m/s2. Compound Pendulum- Symmetric - Amrita Vishwa Vidyapeetham Therefore the length H of the pendulum is: $$ H = 2L = 5.96 \: m $$, Find the moment of inertia for the CM: $$I_{CM} = \int x^{2} dm = \int_{- \frac{L}{2}}^{+ \frac{L}{2}} x^{2} \lambda dx = \lambda \Bigg[ \frac{x^{3}}{3} \Bigg]_{- \frac{L}{2}}^{+ \frac{L}{2}} = \lambda \frac{2L^{3}}{24} = \left(\dfrac{M}{L}\right) \frac{2L^{3}}{24} = \frac{1}{12} ML^{2} \ldotp$$, Calculate the torsion constant using the equation for the period: $$\begin{split} T & = 2 \pi \sqrt{\frac{I}{\kappa}}; \\ \kappa & = I \left(\dfrac{2 \pi}{T}\right)^{2} = \left(\dfrac{1}{12} ML^{2}\right) \left(\dfrac{2 \pi}{T}\right)^{2}; \\ & = \Big[ \frac{1}{12} (4.00\; kg)(0.30\; m)^{2} \Big] \left(\dfrac{2 \pi}{0.50\; s}\right)^{2} = 4.73\; N\; \cdotp m \ldotp \end{split}$$. /Resources << %PDF-1.5 To determine the acceleration due to gravity 'g' by using bar pendulumBar PendulumBar Pendulum ExperimentCompound Pendulum ExperimentAcceleration due to grav. Steps for Calculating an Acceleration Due to Gravity Using the Pendulum Equation Step 1: Determine the period of the pendulum in seconds and the length of the pendulum in meters. Aim (determine a value for g using pendulum motion) To perform a first-hand investigation using simple pendulum motion to determine a value of acceleration due to the Earth's gravity (g). An important application of the pendulum is the determination of the value of the acceleration due to gravity. THE RADIUS OF GYRATION AND ACCELERATION DUE TO GRAVITY - ResearchGate To determine the acceleration due to gravity (g) by means of a compound pendulum. For small displacements, a pendulum is a simple harmonic oscillator. The minus sign indicates the torque acts in the opposite direction of the angular displacement: \[\begin{split} \tau & = -L (mg \sin \theta); \\ I \alpha & = -L (mg \sin \theta); \\ I \frac{d^{2} \theta}{dt^{2}} & = -L (mg \sin \theta); \\ mL^{2} \frac{d^{2} \theta}{dt^{2}} & = -L (mg \sin \theta); \\ \frac{d^{2} \theta}{dt^{2}} & = - \frac{g}{L} \sin \theta \ldotp \end{split}\]. Enter the email address you signed up with and we'll email you a reset link. Change the length of the string to 0.8 m, and then repeat step 3. /MediaBox [0 0 612 792] /Font << This experiment is discussed extensively in order to provide an example of how students should approach experiments and how experimental data should be processed. Like the force constant of the system of a block and a spring, the larger the torsion constant, the shorter the period. 1 Oxford St Cambridge MA 02138 Science Center B-08A (617) 495-5824. Use a 3/4" dia. !Yh_HxT302v$l[qmbVt f;{{vrz/de>YqIl>;>_a2>&%dbgFE(4mw. We are asked to find the length of the physical pendulum with a known mass. When a physical pendulum is hanging from a point but is free to rotate, it rotates because of the torque applied at the CM, produced by the component of the objects weight that acts tangent to the motion of the CM. /Contents 4 0 R Thus, by measuring the period of a pendulum as well as its length, we can determine the value of \(g\): \[\begin{aligned} g=\frac{4\pi^{2}L}{T^{2}}\end{aligned}\] We assumed that the frequency and period of the pendulum depend on the length of the pendulum string, rather than the angle from which it was dropped. As the skyscraper sways to the right, the pendulum swings to the left, reducing the sway. /Length 5315 This was calculated using the mean of the values of g from the last column and the corresponding standard deviation. Legal. This research work is meant to investigate the acceleration due to gravity "g" using the simple pendulum method in four difference locations in Katagum Local Government Area of Bauchi State. To determine the radius of gyration about an axis through the centre of gravity for the compound pendulum. Find more Mechanics Practical Files on this Link https://alllabexperiments.com/phy_pract_files/mech/, Watch this Experiment on YouTube https://www.youtube.com/watch?v=RVDTgyj3wfw, Watch the most important viva questions on Bar Pendulum https://www.youtube.com/watch?v=7vUer4JwC5w&t=3s, Please support us by donating, Have a good day, Finally found the solution of all my problems,the best website for copying lab experiments.thanks for help, Your email address will not be published. Anupam M (NIT graduate) is the founder-blogger of this site. In the experiment the acceleration due to gravity was measured using the rigid pendulum method. Acceleration due to gravity 'g' by Bar Pendulum OBJECT: To determine the value of acceleration due to gravity and radius of gyration using bar pendulum. Two knife-edge pivot points and two adjustable masses are positioned on the rod so that the period of swing is the same from either edge. 27: Guidelines for lab related activities, Book: Introductory Physics - Building Models to Describe Our World (Martin et al. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Newtonian MechanicsFluid MechanicsOscillations and WavesElectricity and MagnetismLight and OpticsQuantum Physics and RelativityThermal PhysicsCondensed MatterAstronomy and AstrophysicsGeophysicsChemical Behavior of MatterMathematical Topics, Size: from small [S] (benchtop) to extra large [XL] (most of the hall)Setup Time: <10 min [t], 10-15 min [t+], >15 min [t++]/span>Rating: from good [] to wow! A string is attached to the CM of the rod and the system is hung from the ceiling (Figure \(\PageIndex{4}\)). Consider an object of a generic shape as shown in Figure \(\PageIndex{2}\). Apparatus . We also found that our measurement of \(g\) had a much larger uncertainty (as determined from the spread in values that we obtained), compared to the \(1\)% relative uncertainty that we predicted. Repeat step 4, changing the length of the string to 0.6 m and then to 0.4 m. Use appropriate formulae to find the period of the pendulum and the value of g (see below). Even simple pendulum clocks can be finely adjusted and remain accurate. Plug in the values for T and L where T = 2.5 s and L = 0.25 m g = 1.6 m/s 2 Answer: The Moon's acceleration due to gravity is 1.6 m/s 2. We measured \(g = 7.65\pm 0.378\text{m/s}^{2}\). Release the bob. In this channel you will get easy ideas about Physics Practical Classes. With the simple pendulum, the force of gravity acts on the center of the pendulum bob. The period for one oscillation, based on our value of \(L\) and the accepted value for \(g\), is expected to be \(T=2.0\text{s}\). This page titled 27.8: Sample lab report (Measuring g using a pendulum) is shared under a CC BY-SA license and was authored, remixed, and/or curated by Howard Martin revised by Alan Ng. The compound pendulum is apt at addressing these shortcomings and present more accurate results. (PDF) Determination of the value of g acceleration due to gravity by document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Newton Ring Practical File with Procedure, Diagram, and observation table. Find the positions before and mark them on the rod.To determine the period, measure the total time of 100 swings of the pendulum. What It Shows An important application of the pendulum is the determination of the value of the acceleration due to gravity. We are asked to find the torsion constant of the string. We also worry that we were not able to accurately measure the angle from which the pendulum was released, as we did not use a protractor. Several companies have developed physical pendulums that are placed on the top of the skyscrapers. Sorry, preview is currently unavailable. Pendulum 2 has a bob with a mass of 100 kg. Which is a negotiable amount of error but it needs to be justified properly. 4 0 obj Accessibility StatementFor more information contact us atinfo@libretexts.org. 16.4 The Simple Pendulum - College Physics 2e | OpenStax PDF Measurement of acceleration due to gravity (g) by a compound pendulum A simple pendulum is defined to have a point mass, also known as the pendulum bob, which is suspended from a string of length L with negligible mass (Figure \(\PageIndex{1}\)). The solution is, \[\theta (t) = \Theta \cos (\omega t + \phi),\], where \(\Theta\) is the maximum angular displacement. Discussion and calculations of compound pendulum due to gravity The angle \(\theta\) describes the position of the pendulum. We adjusted the knots so that the length of the pendulum was \(1.0000\pm0.0005\text{m}\). A physical pendulum is any object whose oscillations are similar to those of the simple pendulum, but cannot be modeled as a point mass on a string, and the mass distribution must be included into the equation of motion. Their value was stated to have and uncertainty of 0.003 cm/s2. Performing the simulation: Suspend the pendulum in the first hole by choosing the length 5 cm on the length slider. Recall from Fixed-Axis Rotation on rotation that the net torque is equal to the moment of inertia I = \(\int\)r2 dm times the angular acceleration \(\alpha\), where \(\alpha = \frac{d^{2} \theta}{dt^{2}}: \[I \alpha = \tau_{net} = L (-mg) \sin \theta \ldotp\]. Required fields are marked *. We thus expect that we should be able to measure \(g\) with a relative uncertainty of the order of \(1\)%. The restoring torque can be modeled as being proportional to the angle: The variable kappa (\(\kappa\)) is known as the torsion constant of the wire or string. Using the small angle approximation and rearranging: \[\begin{split} I \alpha & = -L (mg) \theta; \\ I \frac{d^{2} \theta}{dt^{2}} & = -L (mg) \theta; \\ \frac{d^{2} \theta}{dt^{2}} & = - \left(\dfrac{mgL}{I}\right) \theta \ldotp \end{split}\], Once again, the equation says that the second time derivative of the position (in this case, the angle) equals minus a constant \(\left( \dfrac{mgL}{I}\right)\) times the position. As in the Physical Pendulumdemo, the pendulum knife-edge support is a U-shaped piece of aluminum that is clamped onto a standard lab bench rod. Any object can oscillate like a pendulum. The period, T, of a pendulum of length L undergoing simple harmonic motion is given by: T = 2 L g Additionally, a protractor could be taped to the top of the pendulum stand, with the ruler taped to the protractor. Acceleration due to gravity by using Bar Pendulum | Compound Pendulum PDF Experiment 9: Compound Pendulum - GitHub Pages As the pendulum gets longer the time increases. Formula: A physical pendulum with two adjustable knife edges for an accurate determination of "g". The magnitude of the torque is equal to the length of the radius arm times the tangential component of the force applied, |\(\tau\)| = rFsin\(\theta\). The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. A physical pendulum with two adjustable knife edges for an accurate determination of "g". /Type /Page The results showed that the value of acceleration due to gravity "g" is not constant; it varies from place to place. This way, the pendulum could be dropped from a near-perfect \(90^{\circ}\) rather than a rough estimate. This experiment uses a uniform metallic bar with holes/slots cut down the middle at regular intervals. Theory A simple pendulum may be described ideally as a point mass suspended by a massless string from some point about which it is allowed to swing back and forth in a place. 1 Pre-lab: A student should read the lab manual and have a clear idea about the objective, time frame, and outcomes of the lab. Reversible (Kater's) Pendulum | Harvard Natural Sciences Lecture In difference location that I used to and Garin Arab has the lowest value of acceleration due to gravity which is (9.73m/s 2). The pendulum was released from \(90\) and its period was measured by filming the pendulum with a cell-phone camera and using the phones built-in time. size of swing . We transcribed the measurements from the cell-phone into a Jupyter Notebook. This looks very similar to the equation of motion for the SHM \(\frac{d^{2} x}{dt^{2}}\) = \(\frac{k}{m}\)x, where the period was found to be T = 2\(\pi \sqrt{\frac{m}{k}}\). /F8 27 0 R Read more here. The time period is determined by fixing the knife-edge in each hole. This page titled 15.5: Pendulums is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by OpenStax via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. An example of data being processed may be a unique identifier stored in a cookie. Measurement of acceleration due to gravity (g) by a compound pendulum Aim: (i) To determine the acceleration due to gravity (g) by means of a compound pendulum. The period is completely independent of other factors, such as mass and the maximum displacement. This will help us to run this website. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The bar was displaced by a small angle from its equilibrium position and released freely. Like the simple pendulum, consider only small angles so that sin \(\theta\) \(\theta\). As for the simple pendulum, the restoring force of the physical pendulum is the force of gravity. /F11 36 0 R As with simple harmonic oscillators, the period T T for a pendulum is nearly independent of amplitude, especially if is less than about 15 15. A graph is drawn between the distance from the CG along the X-axis and the corresponding time period along the y-axis.Playlist for physics practicals in hindi.https://youtube.com/playlist?list=PLE9-jDkK-HyofhbEubFx7395dCTddAWnjPlease subscribe for more videos every month.YouTube- https://youtube.com/channel/UCtLoOPehJRznlRR1Bc6l5zwFacebook- https://www.facebook.com/TheRohitGuptaFBPage/Instagram- https://www.instagram.com/the_rohit_gupta_instagm/Twitter- https://twitter.com/RohitGuptaTweet?t=1h2xrr0pPFSfZ52dna9DPA\u0026s=09#bar #pendulum #experiment #barpendulum #gravity #physicslab #accelerationduetogravityusingbarpendulum #EngineeringPhysicsCopyright Disclaimer under Section 107 of the copyright act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research.
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