A solid sphere of mass m is lying at rest on a rough horizontal surface. The coefficient of friction between the ground and sphere is μ. The maximum value of F, so that the sphere will not slip, is equal to
A
75μmg
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B
47μmg
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C
57μmg
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D
72μmg
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Solution
The correct option is D72μmg For translational motion: ma=F−f where f=μmg