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A painter on a platform raises herself by pulling on a rope connected to a system of pulleys as shown above. The painter and the platform combined weight is 100 kg. The painter applies a tension force of magnitude T=200N to one end of the rope. We want to find the combined acceleration of the unit. 1) Draw a free body diagram of forces acting on the combined system of the painter and platform. Look closely at the rope-pulley system and count the number of ropes. (1 point) 2) Using the Newton's second law find the acceleration a of the whole unit. (2 points) 3) The painter has reached the desired height and attached her end of the rope to the platform. Compute the tension in the rope. (2 point) If the rope on that the painter was pulling on now extends to the ground and is pulled by a co-worker with the same amplitude T=200N, what is now the acceleration of the whole unit? (2 points)

A painter on a platform raises herself by pulling on a rope connected to a system of pulleys as shown above. The painter and the platform combined weight is 100 kg. The painter applies a tension force of magnitude T=200N to one end of the rope. We want to find the combined acceleration of the unit. 1) Draw a free body diagram of forces acting on the combined system of the painter and platform. Look closely at the rope-pulley system and count the number of ropes. (1 point) 2) Using the Newton's second law find the acceleration a of the whole unit. (2 points) 3) The painter has reached the desired height and attached her end of the rope to the platform. Compute the tension in the rope. (2 point) If the rope on that the painter was pulling on now extends to the ground and is pulled by a co-worker with the same amplitude T=200N, what is now the acceleration of the whole unit? (2 points)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A painter on a platform raises herself by pulling on a rope connected to a system of pulleys as shown above. The painter and the platform combined weight is 100 kg. The painter applies a tension force of magnitude T=200N to one end of the rope. We want to find the combined acceleration of the unit. 1) Draw a free body diagram of forces acting on the combined system of the painter and platform. Look closely at the rope-pulley system and count the number of ropes. (1 point) 2) Using the Newton's second law find the acceleration a of the whole unit. (2 points) 3) The painter has reached the desired height and attached her end of the rope to the platform. Compute the tension in the rope. (2 point) If the rope on that the painter was pulling on now extends to the ground and is pulled by a co-worker with the same amplitude T=200N, what is now the acceleration of the whole unit? (2 points)
Transcribed Image Text:A painter on a platform raises herself by pulling on a rope connected to a system of pulleys as shown above. The painter and the platform combined weight is 100 kg. The painter applies a tension force of magnitude T=200N to one end of the rope. We want to find the combined acceleration of the unit. 1) Draw a free body diagram of forces acting on the combined system of the painter and platform. Look closely at the rope-pulley system and count the number of ropes. (1 point) 2) Using the Newton's second law find the acceleration a of the whole unit. (2 points) 3) The painter has reached the desired height and attached her end of the rope to the platform. Compute the tension in the rope. (2 point) If the rope on that the painter was pulling on now extends to the ground and is pulled by a co-worker with the same amplitude T=200N, what is now the acceleration of the whole unit? (2 points)
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