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 books on a smooth horizo zjwml)ua(u/2 :hl)pp ntal floor with a force of 100 l: w2jm) puhz u/)pl(apld3n5l s, e5n uovm7,N in a directio5op75mn,dle, vlsu3 nn 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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