Question

Why do pieces of luggage fitted with rollers?

Answer 1

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Rolling reduces friction. It is always easier to roll than to slide a body over another. That is the reason it is convenient to pull luggage fitted with rollers. The rolling friction is smaller than the sliding friction.

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Answer 2

Answer:

Rolling reduces friction. It is always easier to roll than to slide a body over another. That is the reason it is convenient to pull luggage fitted with rollers. The rolling friction is smaller than the sliding friction.

Explanation:

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