Question

11.It is used to reduces the friction, because rolling friction is less than the sliding friction.. Single choice.

(1 Point)

a ramp

Wheel and axle

nail


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Answer 1

Explanation:

Answer: A ball bearing works on the principle that rolling friction is less than sliding friction. It helps in reducing friction between two surfaces in contact and maintaining separation between the bearing races, thereby allowing minimal surface contact between two surfaces.

Answer 2

Answer:

I think it's a ramp

I hope it will be useful