Raj and geetha have a metal cuboid box with them. Raj said that the different frictional force. Geetha said that the frictional is independents of area of contact and so the frictional force is same for any surfaces of the box. Whose answer do you support? Explain?
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Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. ... But almost all crucial tasks cannot be carried out without the presence of friction. Basic activities like walking and writing on a surface are possible due to friction. Hence it is considered as a necessary evil .
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