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Question #136784

Everyday Science

Ball bearings are used to reduce friction by:

Options:

A) Applying lubricant in the balls used

B) Reducing the area of the contact with the use of metallic balls

C) Increasing the area of contact with the use of metallic balls

D) None of these

E) All of these

Answer: Ball bearings are used to reduce friction by: Reducing the area of the contact with the use of metallic balls.

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