What is the primary function of ball-bearings in a wheel?

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Physics · Friction

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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To convert static friction into rolling friction

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Answer 1

To increase the contact surface area of the wheel

Answer 2

To eliminate the gravitational force acting on the axle

Answer 3

To convert kinetic friction into static friction

Answer 4

To convert static friction into rolling friction

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