Question

mention any three methods to reduce friction.physics
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Answer 1

Answer:

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Answer 2

1) By using lubricants: friction increases as the roughness of the surface increases. ...

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. ...

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