1) A box of mass m is on a horizontal plane with coefficient of friction k. When it is pushed by horizontal force F its acceleration is a and when pushing force is 2F its acceleration is 3a. a) Write down the Newton's Law for the two cases. b) Find the cofficient of friction k if a is 4m/s². Take g- 10m/s.

1) A box of mass m is on a horizontal plane with coefficient of friction k. When it is pushed by horizontal force F its acceleration is a and when pushing force is 2F its acceleration is 3a. a) Write down the Newton's Law for the two cases. b) Find the cofficient of friction k if a is 4m/s². Take g- 10m/s.

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Description: 1) A box of mass m is on a horizontal plane with coefficient of friction k. When it is pushed byhorizontal force F its acceleration is a and when pushing force is 2F its acceleration is 3a.Write down the Newton's Law for the two cases.b) Find the co

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section4.6: Forces Of Friction

Problem 4.7QQ: If you press a book flat against a vertical wall with your hand, in what direction is the friction...

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