Wheels are added to trolleys for smooth travel- What is the principle behind this-Both sliding friction and rolling friction are the sameThere is no comparison between sliding friction and rolling friction-Sliding friction is less-than rolling friction-Sliding friction is more than rolling friction-

The correct option is D Sliding friction is more than rolling friction Wheels are added to trolleys to reduce nbsp;friction. As rolling friction is lesser th ...

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Byju's Answer

Standard VIII

Physics

Rolling Friction

Wheels are ad...

Question

Wheels are added to trolleys for smooth travel. What is the principle behind this?

True

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False

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Both sliding friction and rolling friction are the same

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There is no comparison between sliding friction and rolling friction.

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Solution

The correct option is B
False

Wheels are added to trolleys to reduce friction. As rolling friction is lesser than sliding friction, adding wheels to trolleys reduces opposition to motion.

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Similar questions

Which of the following statements is incorrect?
(a) static friction is greater than rolling friction
(b) sliding friction is less than rolling friction
(c) rolling friction is less than static friction
(d) static friction is greater than sliding friction

Sliding friction is less than rolling 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.

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

The sliding friction is more than the rolling friction.

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Wheels are added to trolleys for smooth travel. What is the principle behind this?

The correct option is B False Wheels are added to trolleys to reduce friction. As rolling friction is lesser than sliding friction, adding wheels to trolleys reduces opposition to motion.

The correct option is B
False

Wheels are added to trolleys to reduce friction. As rolling friction is lesser than sliding friction, adding wheels to trolleys reduces opposition to motion.