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A ball of 0.2kg is dropped from a height of 20m with the ground it loses of 30J of energy calculate the height it reaches on the rebounce
4 years ago

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oobleck
its initial PE was mgh = 39.24 J
its energy on rebound is 9.24 J
so, h = 9.24/(0.2 * 9.81) = ____ m

what was it, a medicine ball? Not much bounce ...
4 years ago

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