Q1 Problem 1Problem 1A ladder with mass 20 kg is in equilibrium leaning against a frictionlesswall. The bottom of the ladder rests on the floor; the coefficient of static friction between theladder and the floor is 0.6. If the ladder makes an angle of 60° from the floor, finde=60°(a)the magnitude of the vertical normal force exerted on the ladder by the floor,(b)floor.the magnitude of the horizontal static friction force exerted on the ladder by the(c)What is the minimum angle the ladder can make with the floor without slip-ping?

Answered: A ladder with mass 20 kg is in…

A ladder with mass 20 kg is in equilibrium he ladder rests on the floor; the coefficient c 0.6. If the ladder makes an angle of 60° from

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.63P: The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The...

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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

Q1 Problem 1
Problem 1
A ladder with mass 20 kg is in equilibrium leaning against a frictionless
wall. The bottom of the ladder rests on the floor; the coefficient of static friction between the
ladder and the floor is 0.6. If the ladder makes an angle of 60° from the floor, find
e=60°
(a)
the magnitude of the vertical normal force exerted on the ladder by the floor,
(b)
floor.
the magnitude of the horizontal static friction force exerted on the ladder by the
(c)
What is the minimum angle the ladder can make with the floor without slip-
ping?

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