4 ways by which we can increase friction.
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4 ways by which we can increase friction are:
1.sportsmen have spikes in the soles of their shoes.
2.Wrestlers apply soil on their hand for a firm grip of their opponents.
3.Tyers have treadsto increase friction.
4.The grinding stone used in kitchen has a rough surface. this provides appropriate friction for grinding purpose.
5.When a ground or surface become slippery after rain ,sand is spread over it to increase friction.
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