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Q.

Is it true that the frictional force depends on the types of surfaces in contact?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Yes, the frictional force depends on the type of surface in contact. For example, when two smooth surfaces are in contact with each other, there will be less friction than on rough surfaces, as interlocking is good enough on a rough surface. And the friction is due to force applied on the body.
 
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