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April 25, 2015

Homework Help: College Physics

Posted by Anonymous on Sunday, June 13, 2010 at 9:45pm.

A hockey puck B rests on frictionless, level ice and is struck by a second puck A, which was originally traveling at 40.0 m/s and which is deflected 30 degrees from its original direction. Puck B acquires a velocity at a -45 degree angle to the original direction of A. The pucks have the same mass.

a) compute the speed of each puck after the collision
b) what fraction of the original kinetic energy of puck A dissipates during the collision

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