Question

A child is easily able to carry her suitcase when it has wheels Give reason

Answer 1

it is because the rolling frictional force is less then static force or sliding force

Answer 2

heya friend!!☺☺
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here's your answer!!☺☺⬇⬇

when you have to slide or pull an object it takes more force due to the opposing forces, the reaction forces.

But when you roll the same think it takes lesser force coz no opposite reaction forces are applied...
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hope it helps you!!☺☺