

MCQOPTIONS
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1. |
Ball bearings are used in cycles, scooters etc to |
A. | Increase the friction between the wheel and the axle |
B. | Reduce the friction between the wheel and the axle |
C. | Reduce the friction between ground and the whee |
D. | None of the above |
Answer» C. Reduce the friction between ground and the whee | |