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Effect of Nature of Surface on Friction

The coefficie...

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The coefficient of friction between the floor and body B is 0.1 and between the bodies B and A is 0.2. A force F is applied on B as shown in figure. The maximum value of F such that both are move together is (mass of A and B are m and 2m respectively)

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Q. In the figure the coefficient of friction between the floor and the body

B

0.1

. The coefficient of friction between the bodies

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is applied as shown on

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m / 2

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. Which of the following statements are true?

Q. In figure, the coefficient of friction between the floor and the block B is 0.1. The coefficent of friction between the blocks B and A is 0.2. The mass of A is m/2 and B is m. What is the maximum horizontal force F can be applied to the block B so that two blocks move together?

Q. Three blocks A, B and C of masses

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are placed as shown. Coefficient of friction between A and B is 0.5 and that between B and C is 0.1. The surface is frictionless. The maximum force

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g = 10 m s^{- 2}

Q. Three blocks A, B and C of masses

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