The uniform 20-kg ladder rests on the rough floor for which the coefficient of static friction is ?s = 0.4 and against the smooth wall at B. Determine the horizontal force P the man must exert on the ladder in order to cause it to move.
Added by Paul M.
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Therefore, weight = 20 kg x 9.81 m/s^2 = 196.2 N. Show more…
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