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# A monkey of mass

Question:

A monkey of mass $15 \mathrm{~kg}$ is climbing on a rope with one end fixed to the ceiling. If it wishes to go up with an acceleration of 1 $\mathrm{m} / \mathrm{s}^{2}$, how much force should it apply to the rope? If the rope is $5 \mathrm{~m}$ long and the monkey starts from rest, how much time will it take to reach the ceiling?

Solution: