Question

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Simple harmonic motion: pendulums Equipment Pendulum bobs String and support Meter stick & mass balance Photogate & Smart Timer Preliminary question 1. Describe simple harmonic motion in your own words. 2. Describe how mechanical energy is conserved during a pendulum's swing. 3. You have a 30.0 g pendulum bob attached to a string that is 50.0 cm long. You raise the bob so that the string makes a 20.0° angle with the vertical (as shown) and release it. For the moment when you first release the pendulum, do the following: draw a free-body diagram of the pendulum and write Newton's second law in each direction (hint: choose your coordinate system so that the x-axis is in the direction of the acceleration) use your Newton's law equations to find the tension in the string. a) b) Procedure

Answer 1

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Date Mass bob 3o: D. 03 1 os 2o SIA rs tons x- axis. Sindo bob ako