Q. An 18 g rifle bullet travelling 180m/s buries itself in a 3.6kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Verify the horizontal component of the pendulum's displacement.
Q. A diving board of length 3m is supported at a point 1m from the end, and a diver weighing 520N stands at the free end. The diving board is of uniform cross section and weighs 250N. Find out the magnitude of the force at the support point. Find out the magnitude of the force at the left-hand end.