本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 通用国际物理
[单选题]
A 500-N person stands r.vb68k2dq i1u3brb 4ysi2dcr 0ou*jon amh)k pt l .rxe*4zd,9b uniform board of weight 100 N and length 8.0 m. The board is supporrd 9kxzpm.t l *,)be4hted at each end. If the support force at the right end is three times that at the left end, how far from the right end is the person?
A. $4.0 \; m$
B. $2.0 \; m$
C. $1.6 \; m$
D. $6.4 \; m$
参考答案: C
本题详细解析:
暂无
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