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May 28, 2015

Homework Help: Physics

Posted by Tracy on Wednesday, June 20, 2012 at 7:47pm.

A simple pendulum 1.50 m in length has a 500-g putty ball as an end bob. The pendulum is pulled aside 60° from the vertical and given an initial tangential speed of 1.20 m/s. At the bottom of the arc path, the bob hits and sticks to a 200-g putty ball sitting on a tee. (a) Determine the speed of the 500-g ball just before it hits the 200-g ball and the speed of the combined masses right after they stick together. (b) How much mechanical energy is lost in the collision? (c) What is the maximum angle to which the combined balls swing on the other side?

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