Physics, 26.06.2020 17:01 DerekMoncoal
A child bounces a 50-gram superball on the sidewalk. The velocity of the superball changes from 21 m/s downward to 19 m/s upward. If the contact time with the sidewalk is 1/800 s, what is the magnitude of the force exerted on the superball by the sidewalk
Answers: 2
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A child bounces a 50-gram superball on the sidewalk. The velocity of the superball changes from 21 m...
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