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 uniform board of weight 40 N suppo)a:apwl83-od y -u guorts two children weighing 500 N anda lrcia*c n++-tz2 s)w 350 N, respectively. If the support irw i 2l+tz-sacca+)n* s at the center of the board and the 500-N child is 1.5 m from the center, what is the position of the 350-N child?
A. $1.1 \; m$
B. $1.5 \; m$
C. $2.1 \; m$
D. $2.7 \; m$
参考答案: C
本题详细解析:
暂无
| 
