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OpenStudy (anonymous):
Which of the following must occur in order for work to be done? A. The object must use a machine. B. The object must move. C. The object must make another object move. D. The object must not move.
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OpenStudy (anonymous):
work=force x displacement
OpenStudy (anonymous):
B
OpenStudy (anonymous):
there must be a displacement
OpenStudy (anonymous):
B. The object must move, since w=f*d,a movement or displacement must be there
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