after falling from rest from a height of 30 m, a 0.50
kg ball rebounds upward,...
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Physics
after falling from rest from a height of 30 m, a 0.50kg ball rebounds upward, reaching a height of 20 m. if the contactbetween bam and ground lasted 2.0 ms, what average force wasexerted on the ball?
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Solution The mass of the ball is m 050 kg The ball falls from the rest from the height of 30 m Thus its velocity initial just before impact with the ground can be calculated by vi2 u2 2ay We have u 0 ms ball falls from the rest a g
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