A ladder of weight 'w' rests against a smooth vertical wall, and rests on rough

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A ladder of weight 'w' rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight 'w' is to walk to the top of it safely, is tan'1 x, where x is

Options:

A . 1/4

B . 1/3

C . 3

D . 4

Answer: Option B

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