quankun1972004 quankun1972004

25-11-2022
Physics

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Câu 37. Một bánh đà dạng trụ đặc đồng chất có khối lượng 50 kg, bán kính 40 cm, quay đều với tốc độ 30 vòng/phút dưới tác dụng của lực tiếp tuyến 60 N. Công suất của lực tác dụng là:

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