Mass m = 0.1 kg moves to the right with speed v = 0.31 m/s and collides with an equal mass initially at rest. after this inelastic collision the system retains a fraction = 0.69 of its original kinetic energy. what is the speed vr (in m/s) of the mass which was originally at rest before the collision?
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Mass m = 0.1 kg moves to the right with speed v = 0.31 m/s and collides with an equal mass initially...
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