A 23.0 kg ladder is laid up against a smooth vertical surface. Friction between the floor and the ladder keeps it from slipping. The angle between the floor and the ladder is = 56.0°. B 7. A The length of the ladder is L = 3.50 m and its mass is distributed uniformly. There is no friction along the wall (surface parallel to segment OB) but there is friction along the floor (surface parallel to segment AO). (a) What is the net torque about point A?
A 23.0 kg ladder is laid up against a smooth vertical surface. Friction between the floor and the ladder keeps it from slipping. The angle between the floor and the ladder is = 56.0°. B 7. A The length of the ladder is L = 3.50 m and its mass is distributed uniformly. There is no friction along the wall (surface parallel to segment OB) but there is friction along the floor (surface parallel to segment AO). (a) What is the net torque about point A?
College Physics
11th Edition
ISBN:9781305952300
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Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![(b) What is the magnitude of torque due to gravity about A?
Tg, A
N•m
(c) Calculate the magnitude of the normal force at point B.
NB
N
(d) Suppose the ladder is at a critical angle: if given a slight nudge, it will slip and fall. What must be the
coefficient of static friction between the ladder and the floor?
με
(e) At the instant the ladder slips, what is its moment of inertia?
Iladder
kg m²](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F382fac53-b51b-4573-8830-ef25719f1cc7%2F3188dc61-ef01-4a87-9531-6b242f0a66fa%2Fu7nl3ff_processed.png&w=3840&q=75)
Transcribed Image Text:(b) What is the magnitude of torque due to gravity about A?
Tg, A
N•m
(c) Calculate the magnitude of the normal force at point B.
NB
N
(d) Suppose the ladder is at a critical angle: if given a slight nudge, it will slip and fall. What must be the
coefficient of static friction between the ladder and the floor?
με
(e) At the instant the ladder slips, what is its moment of inertia?
Iladder
kg m²
![A 23.0 kg ladder is laid up against a smooth vertical surface. Friction between the floor and the ladder keeps it
from slipping. The angle between the floor and the ladder is 0 = 56.0°.
B
-L-
A
The length of the ladder is L 3.50 m and its mass is distributed uniformly. There is no friction along the wall
(surface parallel to segment OB) but there is friction along the floor (surface parallel to segment AO).
(a) What is the net torque about point A?
N•m
ΤΑ](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F382fac53-b51b-4573-8830-ef25719f1cc7%2F3188dc61-ef01-4a87-9531-6b242f0a66fa%2F4aw2vnb_processed.png&w=3840&q=75)
Transcribed Image Text:A 23.0 kg ladder is laid up against a smooth vertical surface. Friction between the floor and the ladder keeps it
from slipping. The angle between the floor and the ladder is 0 = 56.0°.
B
-L-
A
The length of the ladder is L 3.50 m and its mass is distributed uniformly. There is no friction along the wall
(surface parallel to segment OB) but there is friction along the floor (surface parallel to segment AO).
(a) What is the net torque about point A?
N•m
ΤΑ
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