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Give an example of a situation in which there is a force

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs ISBN: 9781938168000 42

Solution for problem 2CQ Chapter 7

College Physics | 1st Edition

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College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

College Physics | 1st Edition

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Problem 2CQ

Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.

Step-by-Step Solution:

Solution 2CQ

Work is said to be done by a force on an object when the force acts on the object and displaces it from its position. When a force  acts on an object and displaces it by a distance , then the work done is expressed as , where is the angle between the force and the displacement.

Step 1 of 2

Suppose you lift a bag of books and start walking on a horizontal floor. Now analyze the directions of the force and the displacement. Let us have a look at the following figure to understand the situation.

From the figure above, you have applied a force on the bag in the upward direction. You are walking along the floor as shown above. So, the force and displacement are mutually perpendicular. So, the angle between them is .

According to , when

Hence the work done by you on the bag is zero.

Step 2 of 2

Chapter 7, Problem 2CQ is Solved
Textbook: College Physics
Edition: 1
Author: Paul Peter Urone, Roger Hinrichs
ISBN: 9781938168000

This textbook survival guide was created for the textbook: College Physics , edition: 1. The answer to “Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.” is broken down into a number of easy to follow steps, and 27 words. This full solution covers the following key subjects: work, Force, explain, Example, give. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. The full step-by-step solution to problem: 2CQ from chapter: 7 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. College Physics was written by and is associated to the ISBN: 9781938168000. Since the solution to 2CQ from 7 chapter was answered, more than 2195 students have viewed the full step-by-step answer.

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Give an example of a situation in which there is a force