Question

explain the various method of reducing friction ​

Answer 1

Answer:

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.

Answer 2

Answer:

There are various ways to reduce friction:

1. By using lubricants: friction increases as the

roughness of the surface increases. Lubricants

fill the fine pores and gaps between contact surfaces and reduces friction

2. Polishing surfaces: It makes the surfaces even

and hence reduces friction

3. By using ball bearings: Rotating machines can be mounted on ball bearings. Rolling friction is lesser than sliding friction

4. By streamlining: streamlining reduces the area of contact and thus reduces friction