Calculate the change in the total kinetic energy of the system that occurs during the following collision.  On a frictionless horizontal air table, puck A (with mass 0.252 kg) is moving toward puck...

Calculate the change in the total kinetic energy of the system that occurs during the following collision. 

On a frictionless horizontal air table, puck A (with mass 0.252 kg) is moving toward puck B (with mass 0.368 kg), which is initially at rest. After the collision, puck A has velocity 0.125 m/s to the left, and puck B has velocity 0.646 m/s to the right.

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Energy is a scalar quantity. And the total momentum is conserved in a collision.

In the problem, initially puck A (with mass 0.252 kg) is moving toward puck B (with mass 0.368 kg), which is initially at rest on a frictionless horizontal air table. After the...

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