Ball bearings use friction instead of sliding friction.

static

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rolling

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kinetic

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Solution

The correct option is B rolling
Rolling friction is less than sliding friction. Ball bearings use this principle to reduce friction between two surfaces.

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Similar questions

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. Ball bearings change sliding friction to _________ friction.

Q. Ball bearings are useful because
(a) rolling friction is more than sliding friction.
(b) rolling friction is less than siliding friction.
(c) rolling friction is same as sliding friction.
(d) it is easier to apply grease to ball bearings to reduce friction.

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 use friction instead of sliding friction.

The correct option is B rollingRolling friction is less than sliding friction. Ball bearings use this principle to reduce friction between two surfaces.

The correct option is B rolling
Rolling friction is less than sliding friction. Ball bearings use this principle to reduce friction between two surfaces.