A ball ofmass M is hanging from the lower end of a string of length l. a bullet of mass m moving horizontally hits the ball and sticks to it. What should be the minimum velocity of the bullet so that the ball will be able to complete a full circle ?

A ball ofmass M is hanging from the lower end of a string of length l.

1.	A ball ofmass M is hanging from the lower end of a string of length l. a bullet of mass m moving horizontally hits the ball and sticks to it. What should be the minimum velocity of the bullet so that the ball will be able to complete a full circle ?
Answer» ANSWER :`(M+m)/(m) SQRT(5gl)`