Question

Sometimes you have to increase friction. State any three situations where it is necessary to do so?

Answer 1

when the surface is rough
when gravity need to be increased
when pressure need to be low

Answer 2

Answer:

Three situations where it is necessary to increase friction are:

- Pedals of bicycles, and steering wheels of vehicles have increased amounts of friction.

- Athletes and mountaineers have spikes on the soles of their shoes to improve the grip on the ground.

- When we ride a bicycle, the break pads don't touch the wheels, but when we press the break lever, these pads arrest to the motion of the rim, due to friction, the wheels of the bicycle stop moving

Explanation:

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