A symmetrical uniform solid cube of the side 5 m is placed on a horizontal surface beside a vertical wall, one side of the cube is making an angle 45 ° with the floor as shown. If the coefficient of friction μ is the same for both wall and floor, the minimum value of μ so that cube does not slip is

Question

A symmetrical uniform solid cube of the side 5 m is placed on a horizontal surface beside a vertical wall, one side of the cube is making an angle 45 ° with the floor as shown. If the coefficient of friction μ is the same for both wall and floor, the minimum value of μ so that cube does not slip is, μ = 1, μ = 0, μ = 1 3, Impossible to balance for any value of μ

MARKS App · Accepted Answer

At an angle 45 ° , N and M g balance each other. As they both pass through the centre of mass, so no need for friction to balance it

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