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 force moves an object i 9dz rfgj7k vsg6n 7ojtaf9u5e)0 :x1zn the dir y)1dz 3;b1/h/ .g tmhgtm vhqpection of the force. The graph in Fig. 6-1 shows the force versus the object's position. qg3)g.m1mh/ h th z/by1;dt pv Find the work done when the object moves from 0 to 2.0 m. 
A. $20 \; J$
B. $40 \; J$
C. $60 \; J$
D. $80 \; J$
参考答案: A
本题详细解析:
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