本题目来源于试卷: Mechanical Advantage,类别为 美国物理杯赛(Physics Bowl)
[单选题]
03.45: A point-like obje vh fe6r 1zk0,act of mass 2. pm8;tzpvj;y 1,p2: zx3 lglfs0 kg moves along the x- axis with a velocity of +4. js2 fzl:z lg1pmt8p3,yvp ;x;0 m/s. A net horizontal force acting along the x-axis is applied to the object with the force-time profile shown. What is the total work that was done by the force?

A. 10 J
B. 20 J
C. 25 J
D. 65 J
E. 81 J
参考答案: D
本题详细解析:
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