Physics, 22.07.2021 14:00 issagirl05

Cho con lăn c không trượt có bán kính r, thanh truyền AB =2R, tay quay oa =4R
Tính vận tốc góc thanh Ab

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Cho con lăn c không trượt có bán kính r, thanh truyền AB =2R, tay quay oa =4R
Tính vận tốc gó...

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