Question

Friction between two objects can be increased by -

1.using ball bearings
2.using lubricants
3.polishing the surface
4.making the surface rough​

Answer 1

Answer:

4:- By making surface rough

Answer 2

Answer:

Hope this helps you.

Explanation:

Two main things can increase friction, the mass of the object and the coefficient of friction of the surface. The mass of the object increases the.