A block is sliding on a horizontal surface the friction can be increased by (a) decreasing the mass of the block (B)decreasing the area of contact with surface (C) by polishing the surface (D) by putting 2nd Block on the top
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30
Well , by putting 2nd block on the top as friction is directly proportional to the weight of the body i.e. more is the weight of the body more is the frictional force...
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ans-(a)decreasing the mass of the block
ayushi3142:
but friction is directly proportion to mass of the object so as the mass will be decreased so the friction will also decrease
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