本题目来源于试卷: Work Energy and Power，类别为 美国物理杯赛(Physics Bowl)
[单选题]
06.09: A deliveryman moves 10 cartons from the sidew ya hwi26t:i hxm70de;sm +b*rz i+dt6alk, along a 1 *n6pnz d6h ub-mf)lr* 0-meter ramp to a loading dock, which is 1.5 z p*rbfdmlun)-6n*h 6meters above the sidewalk. If each carton has a mass of 25 kg, what is the total work done by the deliveryman on the cartons to move them to the loading dock?
A. 2500J
B. 3750J
C. 10000J
D. 25000J
E. 37500J
参考答案: B
本题详细解析:
暂无
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