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
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
Homework Answers
40m = v1*cos30 + v2*cos45
and the vertical
0 = v1*sin30 + v2*sin45
In second equation, express v1 in terms of v2, then substitute into the first equation to find v2. v1 is found in similar way.
b) From a), u have the value of v1. Calculate the fraction (v1*v1)/(40*40)
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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
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