Which of the following help reduce friction between two surfaces?

Ball bearings

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Grease

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Powder

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Oil

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Spikes

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Wheels

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Polishing

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Sand

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Solution

The correct option is G Polishing

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Similar questions

Explain with the help of diagrams, how the use of oil reduces friction between two surfaces in contact with each other.

Which of these substances help us to reduce friction between the surfaces?

Friction between two surfaces may be reduced by all of the following methods EXCEPT:

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