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Physics, 28.08.2019 09:30 grosst217

How much force is required to drag a 90 lb. box up this "frictionless" inclined plane? 109 lb. 10 lb. 81 lb. 9 lb.

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How much force is required to drag a 90 lb. box up this "frictionless" inclined plane? 109 lb. 10 l...
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