39) To paint the side of a building, a 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*s:
(b) To hoist himself up, rope B must withstand minimum 400N force.
(c) Rope A will have a tension of 100 N when the painter is at rest.
(d) The painter must exert a force of 200N on the rope A to go downwards slowly.
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