A block of mass m is held in equilibrium against a vertic...
A block of mass m is held in equilibrium against a vertical wall by a horizontal force. If the coefficient of friction between the wall and the block is µ, the minimum value of the horizontal force is
µmg
(1-µ)mg
(1+µ)mg
mg/µ
Correct answer is C
No explanation has been provided for this answer.
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