Physics Unit6: Work and Energy (id: 3f1bb7c0d)

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 400-N box is pushed up go.ojc)a.rr*0i 5n ho an inclined plane. The plane 7td7ngpe;lvr (z1a3t is 4.0 m long and rises 2.0 m. If the plane is frictionless, how much work was l7nvd z3gt 7;ea(1ptrdone by the push?

A. $1600 \; J$
B. $800 \; J$
C. $400 \; J$
D. $100 \; J$


参考答案:  B


本题详细解析: 暂无

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