The aluminum ladder has a uniform weight, W. At point A, the ladder has small rubber pads which grip the ground, providing the static friction, μs. However, there aren't any pads at the top of the ladder, at point B. Therefore, the interface at point B should be modeled as a smooth contact surface. a) Determine the available friction at point A b) Determine the actual friction force at point A c) Will the ladder slip?

The aluminum ladder has a uniform weight, W. At point A, the ladder has small rubber pads which grip the ground, providing the static friction, μs. However, there aren't any pads at the top of the ladder, at point B. Therefore, the interface at point B should be modeled as a smooth contact surface. a) Determine the available friction at point A b) Determine the actual friction force at point A c) Will the ladder slip?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 28PQ

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

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Include a free body diagram please.

Problem 8:
Inputs:
●
●
L = 10 ft
W = 35 lb
μs = 0.2
0 = 65°
The aluminum ladder has a uniform weight, W. At point A, the
ladder has small rubber pads which grip the ground, providing
the static friction, μs. However, there aren't any pads at the top
of the ladder, at point B. Therefore, the interface at point B
should be modeled as a smooth contact surface.
a) Determine the available friction at point A
b)
Determine the actual friction force at point A
c) Will the ladder slip?
A
O
O
O
L
O
O
0
o
O
O
O
O
O
B
O
O

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