A problem by Sameer Gupta
A Bullet of mass 50 grams approaches a ballistic pendulum. There is a collision for which coefficient of restitution is e =0.75. What should be the speed of bullet (in m/s) such that pendulum completes a half vertical circle. Mass of pendulum is 200 grams. Length of string is 5 meter.
Details and assumptions
The acceleration due to gravity is -10 m/s^2