Answer :



Given:


mass=15kg


Acceleration of the monkey in the upward direction, a = 1 m/s2


The free-body diagram of the monkey is given in the attachment:


From the free-body diagram:


T − [15g + 15(a)] = 0


T − [15g + 15(1)] = 0


T = 5 (10 + 1)


T = 15 × 11 = 165 N


The monkey should apply a force of 165 N to the rope.


Initial velocity, u = 0, s = 5 m


Using, s = ut+at �, we get: 5=0+×1×t �


t =5×2 t=10 s


Hence, the time required to reach the ceiling is 10 s.


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