Question

why does rough surface have more friction then smooth surface​

Answer 1

Explanation:

Friction is always more on a rough surface compared to a smooth surface. This is because rough surface offers more resistance to the movement of an object over it compared to a smooth surface

Answer 2

Friction

• Rough surfaces have greater friction than smooth surfaces.

• Rough surfaces have grooves on them.

• When two rough surfaces are in contact

• The grooves of one go inside the grooves of the other

• Thus making the movement difficult.

• Hence, roughness increases friction.