Ball bearings are used to convert static friction into
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Correct Answer: Option A
Detailed Explanation:
Ball bearings contain small spherical balls that convert static friction (friction between surfaces at rest) into rolling friction.
Rolling friction is significantly lower than sliding friction, allowing wheels, gears, and machinery to move smoothly and efficiently with reduced energy loss.
Question 2 of 2 Force and Friction
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Which of the following is a non-contact force?
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