Physics, 31.10.2021 19:10 amandaelisantos
Một bánh xe (có dạng là hình trụ rỗng) bán kính 0.5m, khối lượng m=50kg.
Bánh xe chịu tác dụng bởi một lực tiếp tuyến Ft=100N. a. Gia tốc của bánh xe. b. Bao lâu kể từ khi lúc bắt đầu tác dụng lực thì bánh xe có được tần số
N =100 vòng /phút. Giả thiết lúc đầu xe đứng yên.
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Một bánh xe (có dạng là hình trụ rỗng) bán kính 0.5m, khối lượng m=50kg.
Bánh xe chịu tác dụng bởi...
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