Question

Describe some methods to increase and some methods to reduce friction??

Answer 1

1. Creating a rough surface area throught rubbing the plane with a sand paper.

2. Pefering lubricants reduse friction.

3. Ball bearings reduse mechanical friction.

4. Increase in the fluid viscosity will increase the frictonal force

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.