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Physics

A baseball of mass 0.15 kg moving at a speed of 35.0 m/s crosses the plate and
strikes the catcher's mitt which has a mass of 0.25 kg and originally at rest.
The catcher's mitt immediately recoils backwards (at the same speed as the ball)
before the catcher applies an external force to stop its momentum.
If the catcher's hand is in a relaxed state at the time of the collision, it can be
assumed that no net external force exists and the law of momentum conservation
applies to the baseball-catcher's mitt collision.
Calculate the velocity of the mitt and ball immediately after the collision..
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