Ball bearings change sliding friction to _________ friction.

static

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kinetic

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rolling

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dynamic

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Solution

The correct option is C rolling

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Similar questions

Q. Ball bearings use friction instead of sliding friction.

Ball bearing is a device which usually converts:
(a) rolling friction into sliding friction
(b) static friction into sliding friction
(c) sliding friction into rolling friction
(d) rolling friction into static friction

Since rolling friction is less than sliding friction, sliding friction is replaced with rolling friction in most machines using ball bearings.

Q. From following statements choose the correct combination.
A. Grease is used to reduce friction in bicycle chain
B. Ball bearings are used to reduce friction in a fan
C. Oil can be used to increase friction in a car engine.
D. Talc can be used to reduce friction when an object is sliding on a surface.

Most machines use ball bearings to reduce the energy lost in friction since rolling friction is smaller than sliding friction.

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Ball bearings change sliding friction to _________ friction. ​

The correct option is C rolling

Ball bearings change sliding friction to _________ friction.