Question

Which of the following will produce the maximum friction?
A. rubbing of sand paper on glazed paper
B. rubbing of sand paper on glass table top
C. rubbing of sand paper on aluminium frame
D. rubbing of sand paper on sand paper

Answer 1

Answer:

I think the answer will be option A

Answer 2

D. rubbing of sand paper on sand paper

Explanation:

Friction is a phenomenon which resists motion when an object is rubbed against another. Sliding friction is between two objects when one or both are sliding against each other. Sliding friction is maximum when both the surface rubbing against each other are rough, rather than when one of them is smooth or both are smooth. So a sand paper rubbing against a sand paper will have maximum friction.

Option D is the answer