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 100-N force has a horizontal component of 80 N h7,o6mai58j;rrc,gbyc *h ko and a vertical componentre;ge ,r ym:xdrea8w; :*g87wm y, tog of 60 N. The force is applied to ag,y 7gwmr; :dyw ,xr8ta;e:e8mreog* box which rests on a level frictionless floor. The cart starts from rest, and moves 2.0 m horizontally along the floor. What is the cart's final kinetic energy?
A. $200 \; J$
B. $160 \; J$
C. $120 \; J$
D. zero
参考答案: B
本题详细解析:
暂无
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