3. The coefficient of static friction between Box A with a mass of 220 kg and the inclined surface is 0.10. A rope, tied to the box, passes over a cylinder and the coefficient of static friction between the rope and the fixed cylinder is 0.05. If a woman pulls on the free end of the rope, determine a. the force the woman must exert on the rope to cause the box to start moving up the inclined surface. b. the minimum force the woman must exert on the rope to hold the box in equilibrium on the inclined surface.

3. The coefficient of static friction between Box A with a mass of 220 kg and the inclined surface is 0.10. A rope, tied to the box, passes over a cylinder and the coefficient of static friction between the rope and the fixed cylinder is 0.05. If a woman pulls on the free end of the rope, determine a. the force the woman must exert on the rope to cause the box to start moving up the inclined surface. b. the minimum force the woman must exert on the rope to hold the box in equilibrium on the inclined surface.

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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Concept explainers

Stair construction and layout

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

3. The coefficient of static friction between Box A with a mass of 220 kg and the
inclined surface is 0.10. A rope, tied to the box, passes over a cylinder and the
coefficient of static friction between the rope and the fixed cylinder is 0.05. If a
woman pulls on the free end of the rope, determine
a. the force the woman must exert on the rope
to cause the box to start moving up the
inclined surface.
b. the minimum force the woman must exert on
the rope to hold the box in equilibrium on the
20
inclined surface.

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