Question

Friction can be reduced by
option
1-By polishing the surface

2-By making the surface rough

3-By applying lubricant on the surface

4-A and C are correct options​

Answer 1

Answer:

4-A and C are correct options

Explanation:

By polishing the surface, as polishing makes the surface smooth and friction can be reduced. Using lubricants such as oil or grease can reduce the friction between the surfaces. When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.