Question

Why does the force of friction exist ? 

a)Friction is caused by the regularities on the two surfaces in contact.

b)Friction is caused by the irregularities on the two surfaces in contact.

c)both

d)None
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Answer 1

Explanation:

Friction depends partly on the smoothness of the contacting surfaces, a greater force being needed to move two surfaces past one another if they are rough than if they are smooth. ... It does, however, depend on the magnitude of the forces holding the bodies together.

Answer 2

Answer:

your Gujarati hoo kya batoo

like dedena toha ha ok