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To paint the side of a building painter ...

To paint the side of a building painter normally hoists himself up by pulling on the rope A as in figure. The painter and platform together weigh `200N`. The rope B can withstand `300N`. Then

A

The maximum acceleration that painter can have upwards is `5m//s^(2)`

B

To hoist himself up, rope B must withstand minimum `400N` force.

C

Rope A will have a tension of `100N` when the painter is at rest.

D

The painter must exert a fore of `200N` on the rope A to go downwards slowly.

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