Question

friction can be increase by ______

a) soap solution b) grease
c) oil d) rough surface ​

Answer 1

Answer:

option (d) rough surface this is 100% right answer

Explanation:

Rough surface is uneven so it provides more resisitance to motion of a body hence the frictional force increases.

Answer 2

Answer:

Friction can be increase by making rough surface.