B 5 ft 8 ft 5 ft 6 ft The 10-ft long ladder shown has a uniform weight 20-lb. The ladder is supported by a smooth wall at B and rough floor at A. The static coefficient of friction between the ladder and floor at A is 0.80. Which of the following is closest to the horizontal force P that must be applied to make the ladder move (either slip at A or move away from the wall at B)? a) 10 lb
a smooth wall at B and rough floor at A. The static coefficient of friction between the ladder and floor at A is 0.80. Which of the following is closest to the horizontal force P that must be applied to make the ladder move (either slip at A or move away from the wall at B)? a) 10 lb b) 20 lb c) 22 lb d) 15 lb e) 17 lb