Question

which is suitable method to reduce friction​

Answer 1

The methods are:●》●○◇♡

●》By polishing the surface, as polishing makes the surface smooth and friction can be reduced

.

●》Using lubricants such as oil or grease can reduce the friction between the surfaces.

●》When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.

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Answer 2

Answer:

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Explanation:

Ball and bearing produce rolling motion for which force of friction is low. Lubrication and polishing reduce roughness of surface.

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