Question

What are methods of reducing and increasing friction?

Answer 1

Methods for reducing friction are-
1. Lubrication on the path where the friction has to be increased.
2. Use of rolling friction or sliding friction on that path.
2. Making the surface smooth.

Methods for increasing friction are-
1. Making obstacles in the way.
2. Making the surface rough.

Answer 2

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Methods of increasing friction:-

1) By making the surface rough.

2)By removing all the lubricants.

3)By increasing the mass of the body

Methods of decreasing friction:-

1)By using lubricants.

2)By making the body streamlined

3)By using ball bearings.