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【Daily Question】Theoretical Foundation 2020.01.04

2020-01-04View Original

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This post was last edited by Qingse Nianhua on 2020-1-4 at 16:01. Multiple-choice question: Among the four force triangles shown, which one represents FR = F1 + F2? ( ) Answer: B Hint: According to the triangle rule for the vector addition of forces, in diagram (B), F1 and F2 are connected end to end, and FR extends from the starting point of F1 to the ending point of F2; therefore, FR = F1 + F2. Hint: An additional reward will be given to those who can explain the problem-solving process; the answers can be seen there!

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