A monkey is sitting on a wood plate attached to a -ope whose other end is passed

Question

A monkey is sitting on a wood plate attached to a -ope whose other end is passed over a tree branch, as shown in the figure. The monkey holds the rope and tries to pull it down. The combined mass of the monkey and the wood plate is 127 kg. a) What is the minimum rorce the monkey has to apply to lift off the ground? (in N) b) Now assume there is a second monkey standing on the ground and pulling down the rope by himself. What is the minimum farce this second monkey has to apply to lift the first monkey on the wood plate off the ground? (in N)

Explanation / Answer

Newton's second law, it is a pity that you can not see the picture

Part a)

T-W = 0

T = W = m g

T = 127 9.8

T = 1244.6 N

For the monkey climb to apply a force greater than this value

Therefore the correct result should be G

Part b)

The second monkey should apply a force exactly equal to that applied the first monkey, but in the opposite direction

I mean that force should be 1244.6 N

Correct answer F

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