Question

Movement
across rought surface causes
friction.​

Answer 1

Answer:

Whenever a body moves or tends to move over the surface of another body , then a force comes into play which acts parallel to the surface of contact and oppose the relative motion . the opposing force is what ???

off - course - FRICTION force !!!!

According to F.P Bowdon :-

due to contact , binding force start to act on in contact surface this binding force increases when roughness of surface increases, hence, for increment of binding force roughness must be increased , but we know according to definition of frictional force binding force ( opposing force ) is nothing , this is frictional force .

Hence, Frictional force is greater in rough surface compare to smooth surface .

Explanation:

PLZ MARK AS BRAINIEST