Q.

Is it true that friction is a contact force?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
A force that opposes the motion of one surface over the other is known as friction. Friction is defined as the force that opposes the motion of a solid body over each other. It is a contact force. There are three types of friction: the first is static friction, the second is sliding friction and the third is rolling friction. Due to friction, objects can move over each other.
 
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Is it true that friction is a contact force?