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Solved: A puck on a horizontal, frictionless surface is

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker ISBN: 9780321541635 54

Solution for problem 63P Chapter 11

Physics with MasteringPhysics | 4th Edition

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

Physics with MasteringPhysics | 4th Edition

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Problem 63P

Problem 63P

A puck on a horizontal, frictionless surface is attached to a string that passes through a hole in the surface, as shown in. As the puck rotates about the hole, the string is pulled downward, bringing the puck closer to the hole. During this process, do the puck's (a) linear speed, (b) angular speed, and (c) angular momentum increase, decrease, or stay the same?

FIGURE

Step-by-Step Solution:

Solution 63P

Part (a)

Step 1 of 3:

A puck rotates about the hole on a horizontal table. It is attached to a string and the string is pulled down. The puck is brought closer to the hole. We are going to find the linear speed of the puck.

The angular momentum of the puck is constant as the string exerts no torque on it. Therefore

L = mvr = constant

v

The radius of the circular path decreases as the puck approaches the hole and the linear speed increases.

Answer: the linear speed increases.


Part (b)

Step 2 of 3

Chapter 11, Problem 63P is Solved
Step 3 of 3

Textbook: Physics with MasteringPhysics
Edition: 4
Author: James S. Walker
ISBN: 9780321541635

Physics with MasteringPhysics was written by and is associated to the ISBN: 9780321541635. This textbook survival guide was created for the textbook: Physics with MasteringPhysics, edition: 4. Since the solution to 63P from 11 chapter was answered, more than 1592 students have viewed the full step-by-step answer. This full solution covers the following key subjects: puck, hole, speed, string, angular. This expansive textbook survival guide covers 32 chapters, and 3833 solutions. The answer to “A puck on a horizontal, frictionless surface is attached to a string that passes through a hole in the surface, as shown in. As the puck rotates about the hole, the string is pulled downward, bringing the puck closer to the hole. During this process, do the puck's (a) linear speed, (b) angular speed, and (c) angular momentum increase, decrease, or stay the same? FIGURE” is broken down into a number of easy to follow steps, and 65 words. The full step-by-step solution to problem: 63P from chapter: 11 was answered by , our top Physics solution expert on 07/27/17, 10:59AM.

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Solved: A puck on a horizontal, frictionless surface is