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Friction can be increased by ___________

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Friction can be increased by ___________

(a) Using air cushion

(b) Lubricants

(c) Using sand

(d) Using ball bearings

I have been asked this question in examination.

My query is from Friction and Forces topic in section Laws of Motion of Engineering Physics I

1 Answer

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Best answer
The correct option is (c) Using sand

The explanation: By throwing sand the force of friction between the wheels and the track becomes easier. On rainy days, we throw sand on the slippery ground. This increases the friction between our feet and the ground and reduces the chance of slipping.

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