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If a ball is moving then it will not stop until and unless an external force is applied. And it is same for the ball at rest. ( 1st law of Newton) But we see that when we roll a ball on a ground it stops after sometime automatically. Why that is the case we do not see any external force there.

If a ball is moving then it will not stop until and unless an external force is applied. And it is same for the ball at rest. ( 1st law of Newton) But we see that when we roll a ball on a ground it stops after sometime automatically. Why that is the case we do not see any external force there.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question: If a ball is moving then it will not stop until and unless an external force is applied. And it is same for the ball at rest. (1st law of Newton) But we see that when we roll a ball on a ground it stops after sometime automatically. Why that is the case we do not see any external force there.
Transcribed Image Text:Question: If a ball is moving then it will not stop until and unless an external force is applied. And it is same for the ball at rest. (1st law of Newton) But we see that when we roll a ball on a ground it stops after sometime automatically. Why that is the case we do not see any external force there.
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