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Physics / Physics with MasteringPhysics 4 / Chapter 11 / Problem 49P

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

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You pull downward with a force of 28 N on a rope that

Chapter 11, Problem 49P

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QUESTION:

Problem 49P

You pull downward with a force of 28 N on a rope that passes over a disk-shaped pulley of mass 1.2 kg and radius 0.075 m. The other end of the rope is attached to a 0.67-kg mass. (a) Is the tension in the rope the same on both sides of the pulley? If not, which side has the largest tension? (b) Find the tension in the rope on both sides of the pulley.

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QUESTION:

Problem 49P

You pull downward with a force of 28 N on a rope that passes over a disk-shaped pulley of mass 1.2 kg and radius 0.075 m. The other end of the rope is attached to a 0.67-kg mass. (a) Is the tension in the rope the same on both sides of the pulley? If not, which side has the largest tension? (b) Find the tension in the rope on both sides of the pulley.

ANSWER:

Step 1 of 2

Part a

The tension on each side of the pulley is different. On your side, the rope is pulled downward. Therefore, the tension in the rope on your side is greater than the other side. Therefore, the mass on the other side of the pulley will move up.

Hence, the tension is not the same on both sides of the pulley.

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