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Problem: A house painter uses the chair and pulley arrangement of the figure to lift himself up the side of a house. The painter's mass is 65kg and the chair's mass is 9.0kg.
Part A: With what force must he pull down on the rope in order to accelerate upward at 0.18m/s2?
I want help to find with what force he must pull down on the rope.
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
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