Question

Give reason for the sentence - Rollers are used for transporting luggage.

Answer 1

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Because rolling friction is smaller then sliding friction,therefore it is easier to transport a bag fitted with rollers.

Answer 2

Answer:

It is always easier to roll a body than to slide it over a surface. So it is convenient to pull a the luggage fitted with rollers. When one body rolls over the surface of another body, the friction offered is called ROLLING FRICTION. So this is the reason behind rollers are used for transporting luggage.

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