Back to home

Start Practice


Question-1 A weightless ladder 20 ft long rests against a frictionless wall at an angle of 60o from the horizontal. A 150 pound man is 4 ft from the top of the ladder . A horizontal force needed to keep it form slipping. Choose the correct magnitude of force from the following.?

(A) 17.3 pound

(B)100 pound
(C)120 pound
(D)150 pound




Powered By