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OpenStudy (anonymous):
A 0.400-kg ice puck, moving east with a speed of 5.54m/s , has a head-on collision with a 0.950-kg puck initially at rest. Assume that the collision is perfectly elastic. What is the speed of the 0.400-kg puck after the collision? What ise the speed of the 0.950-kg puck after the collision?
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OpenStudy (shamim):
the equation required is m1u1+m2u2=m1v1+m2v2
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