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 bowy 2z g+nm8x1uo(,uietijz ; 5x e3. xo,ypugwb3) r-ilof books on a smooth horizontal floor with a force of 100 N in a dir.3yw ibreu )o x-p,l3gection of $37^{\circ}$ above the horizontal. If the mass of the box and the books is 40.0 kg, what is the acceleration of the box?
A. $1.5 \; m/s^2$
B. $1.9 \; m/s^2$
C. $2.0 \; m/s^2$
D. $3.3 \; m/s^2$
参考答案: C
本题详细解析:
暂无
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