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Physics, 27.07.2019 08:50 Elliewop

Aball is dropped from rest from the top of a building and strikes the ground with a speed . from ground level, a second ball is thrown straight upward at the same instant that the first ball is dropped. the initial speed of the second ball is , the same speed with which the first ball eventually strikes the ground. ignoring air resistance, decide whether the balls cross paths

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