Question

3. How the coefficient of friction between a body and a surface changes if the
mass of the body is doubled.​

Answer 1

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• To Find :

=> How co-efficient of friction between a body and a surface changes if the mass of the body is doubled...

• Formula :

$\implies \: frictional \: force \propto \: normal \: reaction \\ \\ \implies \: \boxed{ \pink{f = \mu \times </strong><strong>N</strong><strong>}}$

=> Here u = Co-efficient of friction

=> As per formula co-efficient of friction has constant value it is not depends upon mass of the body..

=> Co-efficient of friction is internal property of surface..

=> TNX

Answer 2

HELLO!

There is no change in the coefficient of friction between a body and a surface, if there is any change in the mass of the body. Coefficient of friction is the sole property of the surface. The frictional force, though changes because there is a change in mass of the body.

Check out the attachment for the formulae and related stuffs.

Thanks!