A ladder with a length of L= 8 m and a mass of M=50 kg rests on a rough ground (providing friction) and on a roller without friction at the top of the wall at h= 5 m above the ground (see figure). The angle θin the picture is 60°, and the ladder is just about to slip. (A) Draw a force diagram whichshows all forces acting on the ladder.Take the force that the roller exerts to be perpendicular to the ladder. (B) Use a net torque equation to calculate the force that the roller exerts on the ladder. (C) Use net force equations to calculate the normal from the ground, the force of static friction, and the coefficient of static friction.
A ladder with a length of L= 8 m and a mass of M=50 kg rests on a rough ground (providing friction) and on a roller without friction at the top of the wall at h= 5 m above the ground (see figure). The angle θin the picture is 60°, and the ladder is just about to slip. (A) Draw a force diagram whichshows all forces acting on the ladder.Take the force that the roller exerts to be perpendicular to the ladder. (B) Use a net torque equation to calculate the force that the roller exerts on the ladder. (C) Use net force equations to calculate the normal from the ground, the force of static friction, and the coefficient of static friction.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A ladder with a length of L= 8 m and a mass of M=50 kg rests on a rough ground (providing friction) and on a roller without friction at the top of the wall at h= 5 m above the ground (see figure). The angle θin the picture is 60°, and the ladder is just about to slip.
(A) Draw a force diagram whichshows all forces acting on the ladder.Take the force that the roller exerts to be perpendicular to the ladder.
(B) Use a net torque equation to calculate the force that the roller exerts on the ladder.
(C) Use net force equations to calculate the normal from the ground, the force of static friction, and the coefficient of static friction.
Transcribed Image Text:Roller
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