Physics Unit6: Work and Energy (id: 62bfa2850)

本题目来源于试卷: Physics Unit6: Work and Energy，类别为 国际高中通用物理

[单选题]
A container of water is lifted verty*u-kq+1gl v g +s5hs i*7lsav.x8xvhically 3.0 m then returned tirk **m9uvr*/:y hq dko its original position. If the total weighvrkh rudm :i/9y*k*q* t is 30 N, how much work was done?

A. $45 \; J$
B. $90 \; J$
C. $180 \; J$
D. No work was done.


参考答案:  D


本题详细解析: 暂无

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