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Static Friction

A block of ma...

Question

A block of mass M is being pulled along rough horizontal surface. The coefficient of friction between the block and the surface is $μ$ . If another block of mass M/2 is placed on the block and it is again pulled on the surface, the coefficient of friction between the block and the surface will be

A

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B

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C

2

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D

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Solution

The correct option is A

Coefficient of friction is independent of the normal reaction. Hence, it will remain same.

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