Physics, 19.09.2020 01:01 erbnichole
A boy on a roof throws one ball downward and an identical ball upward. The ball thrown downward hits the ground with 100 J of kinetic energy. If both balls are thrown at the same speed and there is no air friction, what is the kinetic energy of the second just before it hits the ground
Answers: 1
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A boy on a roof throws one ball downward and an identical ball upward. The ball thrown downward hits...
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