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Physics, 02.11.2021 22:20 thomaswillmsn7496

một vật có khối lượng m=1kg trượt trên mặt phẳng nghiêng hợp mới mặt đất một góc a sao cho sina=0.1 .sau khi trượt hết mặt phẳng nghiêng vật tiếp tục chuyển động trên mặt phẳng ngang một đoạn l=10m rồi dừng lại . hệ số ma sát trong quá trình chuyển động k=0,05. tìm vận tốc của vật ở cuối mặt phẳng nghiêng lấy g=10m/s^2

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một vật có khối lượng m=1kg trượt trên mặt phẳng nghiêng hợp mới mặt đất một góc a sao cho sina=0.1...
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