Question

هتلدال علامات ملف خاندان امام
.
Why it is easier to pull A suitcase bag
with wheels compared to a suitcase bagwithout wheels​

Answer 1

Answer:

It is easier to pull a suitcase having wheels, because the ball barerings roll and reduces the friction.

Answer 2

Answer:

Because the wheel of bags reduces the friction.And it requires less inertia to move a body (at rest) if friction is less.Hence it is easier to pull a suitcase bag with wheels when compared to a suitcase bag without wheels.

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