本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理
[单选题]
A 500-kg elevator is5.jhelw hpfk3bgv)*kl/;v b +/dr+hy pulled upwn6p12odwqr aklylfgj.*)0 u) b ,jw( zard with a constant force of 5500 N for a distance of 50.0 m. What is the net work done on the elev( gk dofuw)wq.z,6*jall j)20rn 1yp bator?
A. $2.75 \times 10^{5} \; J$
B. $-2.45 \times 10^{5} \; J$
C. $3.00 \times 10^{4} \; J$
D. $-5.20 \times 10^{5} \; J$
参考答案: C
本题详细解析:
暂无
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