Q1. A 40 g rifle bullet travelling 260 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
Q2. A diver stands at rest at the end of a 33 kg diving board. Find out the total torque due to gravity on the diving board. Assume the mass of the board is uniformly distributed. (Suppose that the mass of the diver is 164.0 kg and the length of the board is 4.3 m.)