Physics Question? Help please!!!!!!!!!

Posted on 2014-11-18 06:11:00 in Physics by MOE

A pendulum of mass m = 0.52 kg and length l = 0.95 m is released from a horizontal position. At the bottom of its swing, it collides elastically with a mass M = 0.65 kg.

(a) What is the velocity of mass M right after the collision?

(b) To what height above its low point does mass m rebound?

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