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OpenStudy (anonymous):
what is the work done by the man who is climbing a ladder with a box in one hand
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OpenStudy (anonymous):
A) positive B) negative C) zero D) undefined
OpenStudy (lastdaywork):
By climbing the ladder, his potential energy is increasing. Hence, the man is doing some (non-zero) work. I'll cross out (C) and (D). Your move.
OpenStudy (anonymous):
positiive
OpenStudy (lastdaywork):
Yep!!
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