Question

name the machines which are used to reduce the friction ​

Answer 1

Answer:

To reduce the friction in machines, air cushion can be used in places of lubricants. Hovercraft uses air cushion instead of lubricants to reduce friction in moving parts.

Answer 2

Answer:

1)A bicycle mechanic and motor mechanic uses grease between the moving parts of these machines to reduce friction and increase efficiency. 2)When a few drops of oil are poured on the hinges of a door, the friction is reduced and the door smoothly.

Explanation:

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