Physics, 30.08.2021 06:50 SmartScholar4094
Cho vật m đặt trên mặt phẳng ngang nhẵn, được kéo bởi lực F=50N, nghiêng một góc 
=30 độ. biết phản lực do mặt sàn tác dụng lên vật có giá trị 15N. Trọng lượng của vật là?
Answers: 1
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Cho vật m đặt trên mặt phẳng ngang nhẵn, được kéo bởi lực F=50N, nghiêng một góc =30 độ. biết phản l...
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