8 ft B 5 ft 6 ft 5 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)?

8 ft B 5 ft 6 ft 5 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)?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Stair is a type of vertical transportation in a building which consist of a series of steps in a flight of stairs that enable the vertical movement of people and materials from one floor to another. A staircase consists of steps that comprises of riser & tread, handrail, baluster, stair stringers, newel post and waist slab. The construction of staircase with all the components is termed as stair construction. A staircase is an enclosure that contains the entire stairway. The materials used for the construction of stairs are bricks, reinforced cement concrete, stone, lumber, steel and a combination of these materials.

Question

8 ft
B
5 ft
6 ft
5 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)?

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