A ladder at rest is leaning against a wall at an angleas shown below. Which of the following forces must have the same magnitude as the frictional force exerted on the ladder by the floor? a The force of gravity on the ladder b The normal force exerted on the ladder by the wall c The normal force exerted on the ladder by the floor d The frictional force exerted on the ladder by the wall
A ladder at rest is leaning against a wall at an angleas shown below. Which of the following forces must have the same magnitude as the frictional force exerted on the ladder by the floor? a The force of gravity on the ladder b The normal force exerted on the ladder by the wall c The normal force exerted on the ladder by the floor d The frictional force exerted on the ladder by the wall
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter9: Statics And Torque
Section: Chapter Questions
Problem 17PE: To get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg)...
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Question
A ladder at rest is leaning against a wall at an angleas shown below.
Which of the following forces must have the same magnitude as the frictional force exerted on the ladder by the floor?
a
|
The force of gravity on the ladder
|
b
|
The normal force exerted on the ladder by the wall
|
c
|
The normal force exerted on the ladder by the floor
|
d
|
The frictional force exerted on the ladder by the wall
|
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