B 5 ft 8 ft 5 ft 6 ft NOTE: the direction of the applied force P has reversed from the previous problem. The 10-ft long ladder shown has a uniform weight 20-1b. 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 (i.e. slip at support A)?
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 (i.e. slip at support A)? O a) 47 lb b) 50 lb O c) 20 lb d) 33 lb e) 41 lb