1) A ladder leans against a wall as shown below. A hammer is placed on one of the rungs (you can assume the hammer is pointlike). The ladder feels a force of friction from the ground, but there is no friction between the ladder and the wall. The length of the ladder is 20 ft The mass of the ladder 40 The inclination of the ladder 35 The height of the hammer 10 The mass of the hammer 25 (a) Draw the ladder. (b) Draw all forces acting on the ladder. (c) Set origin and axes. (d) Write the force balance on the ladder, both in x and y. (e) Write the torque balance on the ladder. (f) Determine the coefficient of friction between the ground and the ladder.
1) A ladder leans against a wall as shown below. A hammer is placed on one of the rungs (you can assume the hammer is pointlike). The ladder feels a force of friction from the ground, but there is no friction between the ladder and the wall. The length of the ladder is 20 ft The mass of the ladder 40 The inclination of the ladder 35 The height of the hammer 10 The mass of the hammer 25 (a) Draw the ladder. (b) Draw all forces acting on the ladder. (c) Set origin and axes. (d) Write the force balance on the ladder, both in x and y. (e) Write the torque balance on the ladder. (f) Determine the coefficient of friction between the ground and the ladder.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1) A ladder leans against a wall as shown below. A hammer is placed on one of the rungs (you can assume the hammer is pointlike). The ladder feels a force of friction from the ground, but there is no friction between the ladder and the wall.
The length of the ladder is 20 ft
The mass of the ladder 40
The inclination of the ladder 35
The height of the hammer 10
The mass of the hammer 25
(a) Draw the ladder.
(b) Draw all forces acting on the ladder.
(c) Set origin and axes.
(d) Write the force balance on the ladder, both in x and y.
(e) Write the torque balance on the ladder.
(f) Determine the coefficient of friction between the ground and the ladder.
Transcribed Image Text:ladder
wall
ground
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