Physics - Center of Mass Question with Solution | TestHub

A bullet of mass m = 0.01 kg and velocity v passes through a pendulum bob of mass M = 1 kg and emerges with velocity v/2 (figure). The pendulum bob is at the end of a string of length l = 2 m. Taking g = 10 m/s², what is the minimum value of v (in m/s) such that the pendulum bob will swing through a complete circle?