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Two pieces of clay are moving directly toward each other. When they collide, they stick together...

Two pieces of clay are moving directly toward each other. When they collide, they stick together and move as one piece. One piece has a mass of 332 grams and is moving to the right at a speed of 1.16 m/s. The other piece has mass 606 grams and is moving to the left at a speed of 0.934 m/s.

What fraction of the total initial kinetic energy is lost during the collision? In other words what is (KEi - KEf)/KEi ?

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