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 is pulled upkw) fzna v)vw 63tpxau.0;z 7jward with 8t0rzih9 cwnf41zh:q a constant force of 5500 N for a distance of 50.0 m. What is the work done by the 5500 :8 1fnhr c4zqzw 9hit0N force?
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: A
本题详细解析:
暂无
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