explain the need of increasing and decreasing friction
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By making the surface rough ,friction force can be increased. ... when a ground or surface become slippery after rain or water splashing it is made rough by spreading sand to increase the friction. To decrease friction: (i) Friction between two surfaces can be decreased by using lubrican
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Answer:
By making the surface rough ,friction force can be increased. ... when a ground or surface become slippery after rain or water splashing it is made rough by spreading sand to increase the friction. To decrease friction: (i) Friction between two surfaces can be decreased by using lubricants
Explanation:
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