A heavymass M resting on the ground is attached to a small mass m via massless inextensible string passing over a pulley.The string connected to M is loose.The smaller mass falls freely through a height h and the string becomes tight. Obtain the time from this instant when the heavier mass again makes contact with the ground. Also obtain the loss in K.E. when M is jerked in to motion.

A heavymass M resting on the ground is attached to a small mass m via

1.	A heavymass M resting on the ground is attached to a small mass m via massless inextensible string passing over a pulley.The string connected to M is loose.The smaller mass falls freely through a height h and the string becomes tight. Obtain the time from this instant when the heavier mass again makes contact with the ground. Also obtain the loss in K.E. when M is jerked in to motion.
Answer» ANSWER :`[(2M)/((M-m)G)SQRT((2H)/(g)),(Mmgh)/(M+m)]`