A problem by Sameer Gupta

Level pending

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

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