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Physics, 15.01.2020 02:31 chevysilverado2377

(question) a 100 kg rock sits on top of a 80-meter cliff. if the rock falls, how fast is it going at 20 m? ignore air resistance.

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(question) a 100 kg rock sits on top of a 80-meter cliff. if the rock falls, how fast is it going at...
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