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题目
A wooden crate is pushed across a concrete floor at 5m/s and released.It slides to a stop after moving a short distance.The same crate is filled until it weighs twice as much as did previously and again slid across the floor at 5m/s and released.The stopping distance for the crate will be?为什么会是the same distance?0.O

提问时间:2021-04-05

答案
举一反三
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