07_P44InstructorSolution

07_P44InstructorSolution - 7.44 Model The painter and the...

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7.44. Model: The painter and the chair are treated as a single object and represented as a particle. We assume that the rope is massless and that the pulley is massless and frictionless. Visualize: Solve: If the painter pulls down on the rope with force F , Newton’s third law requires the rope to pull up on the painter with force F . This is just the tension in the rope. With our model of the rope and pulley, the same tension
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