Question

explanation of reduce the friction in different machines​

Answer 1

Answer:

In vehicles, oiling is done in the engine to reduce friction

Explanation:

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Answer 2

Answer:

Friction reduces the work efficiency as two parts of the machine side passes each other, friction force resist the motion. Thus some energy reduces in overcoming the friction force. Therefore it reduces efficiency. It can be overcome by applying oil or any wax and by polishing.

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