Question

1. Consider a physical pendulum with length 0.68 m and mass 0.200 kg. If the pendulum was released form an angle of 10*, then calculate the angular speed of the pendulum. (gravity= 9.8 m/s^2). [I tried using the formula: 2pi/L to get 2pi/0.68 = 9.24 but this is NOT correct.]

2. Suppose that you are on an unknown planet in a distant galaxy. Let the length of a physical pendulum be 0.53 m. In the physical pendulum experiment, the period is determined to be 0.25 s. What is the gravitational acceleration of the planet? [I tried using the formula g= (2pi/T)^2 * L to get (2pi/0.25)^2 * 0.53 = 334.78 but this is NOT correct.]

Please help thank you!

Answer 1

Pen 9-g 0-62