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Consider a crate at rest on a factory floor. As a pair of

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt ISBN: 9780321909107 29

Solution for problem 40E Chapter 2

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

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Problem 40E

Consider a crate at rest on a factory floor. As a pair of workmen begin lifting it, does the support force on the crate provided by the floor increase, decrease, or remain unchanged? What happens to the support force on the workmen’s feet?

Step-by-Step Solution:
Step 1 of 3

ANSWER: Suppose the mass of the crate is “m”. While it was on the floor, it had a weight of “mg” because of the normal reaction. When some people were lifting the crate, the normal reaction changes accordingly. Let’s calculate the normal reaction. STEP 1:- Let’s imagine that the people lifted the crate and the crate accelerated upwards with an acceleration of “a”. The normal reaction the crate got from the hands of the workers is, N mg = ma-------------------(1) N = mg + ma = m(g + a)---------------(2)...

Step 2 of 3

Chapter 2, Problem 40E is Solved
Step 3 of 3

Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

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