本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 通用国际物理
[单选题]
A student pulls a box of becs*kiqv6p 4,4f 3p pnooks on a smooxgiipu/is ; w1k9pod)e,7 nl:th horizontal floor with a force of 100 N in a direction of 37.0e above the horizontal. If the mass of the box and the books is 40.0 kg, what is the:e ii uixls1k;,g)opnw7pd /9 normal force on the box?
A. $292 \; N$
B. $312 \; N$
C. $332 \; N$
D. $392 \; N$
参考答案: C
本题详细解析:
暂无
| 
