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carts of masses m1 = 100 g and m2 = 900 g are on a horizontal,...

carts of masses m1 = 100 g and m2 = 900 g are on a horizontal, smooth track. The first car is moving at v = 16 m/s toward the second car which is at rest. (a) Find the velocity of the cars after collision if the stick together. (b) What fraction of the initial kinetic energy was lost in the collision? (c) Find the velocity of the cars after collision if the collision is elastic. (d) What fraction of the initial kinetic energy was transmitted to the second car?

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