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Forces of 3.0 N and 4.0 N act at right angles on a block

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

Solution for problem 4P Chapter 5

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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5
Problem 4P

Forces of 3.0 N and 4.0 N act at right angles on a block of mass 2.0 kg. Show that the acceleration of the block is 2.5 m/s2.

Step-by-Step Solution:
Step 1 of 3

Here consider Two forces of magnitude 3N and 4N, are applied to an object. The relative direction of the forces is unknown. The two limits for adding the forces give that the magnitude of the net force must be 1N F 7N so 5N is excluded. net Net force of these two vectors should be 5N Therefore from newton’s second law F = ma a = F/m a = 5N/2 kg a = 2.5 m/s Or 2 2 The net force is given by F (3N) + (4N) = 25N = 5 N. Then Therefore from newton’s second law F = ma a = F/m a = 5N/2 kg 2 a = 2.5 m/s

Step 2 of 3

Chapter 5, Problem 4P is Solved
Step 3 of 3

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

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Forces of 3.0 N and 4.0 N act at right angles on a block