Magree5321
27.10.2021 •
Physics
Biểu diễn những lực sau đây:
a. Trọng lực của một vật 300N ( tỉ xích 0.5cm ứng với 50N )
b. Lực kéo tác dụng vào điểm A của một vật có độ lớn 1500N theo phương nằm ngang, chiều từ trái sang phải ( 1cm ứng với 500N )
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