本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 国际高中通用物理
[单选题]
A 500-N person stands on a uniform board of weight 100 N and length 8.0 m. The n tep is*a:x5u9tnrfy(cve /a 8p3z1 *ep:9x8v (t za5rc3ue1ytn s*pn /*iaff(z 6nu 3+ghruboard is supported at each end. If the support force at the right end is three times thz fhn +(ugu6r3at 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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