Answered: 12-kg box is released from the top of…

12-kg box is released from the top of an incline that is 5.0 m long and makes an angle of 40 degrees to the horizontal. A 60-N friction force impedes the motion of the box.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 39P

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

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3. A 12-kg box is released from the top of an incline that is 5.0 m long and makes an angle of 40 degrees to the horizontal. A 60-N friction force impedes the motion of the box. What will be the acceleration of the box? How long will it take to reach the bottom of the incline?

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