Multiple choice

Even a child can pull a piece of luggage fitted with rollers as compared to the one without rollers. Why?

  1. Because rolling friction is greater than the sliding friction

  2. Because rolling friction is smaller than the sliding friction

  3. Because rolling friction is equal to the sliding friction

  4. Because rolling friction and sliding friction oppose each other
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is always easier to roll than to slide a body over another. It is convenient to pull a luggage fitted with rollers as rolling friction is smaller than the sliding friction.

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