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Homework Help
Introductory Physics Homework Help
Why Does the Painter Only Need to Pull Down with 400N to Accelerate Upwards?
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[QUOTE="mfb, post: 4318537, member: 405866"] 800N of tension in the rope gives 800N upwards force both on the chair and him holding the rope, for a total force of 1600N upwards. 400N is the correct answer. If you, standing next to the setup, would have to pull, you would need 800N (but have just half the rope velocity as you would not move upwards). [/QUOTE]
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Introductory Physics Homework Help
Why Does the Painter Only Need to Pull Down with 400N to Accelerate Upwards?
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