Question

3 method of increasing friction​

Answer 1

Answer:

There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the 'designs' that you can see on the tyre surface), which increase the friction between the tyre and the road.

hope it help u

Answer 2

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sometimes we need to increase friction so as to avoid slipping of objects, for example :-

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the soul of the shoes is grooved so that the friction between our feet and ground increases and we can walk safely

the tires are treaded so that they can have a better grip over the ground and allow the smooth movement of the vehicles

Kabaddi player rub their hand with soil which help in increasing the friction between the hand and allows them to have a easy grip of the opponent