A 230 lbs horizontal force P is applied to a 100 lbs box resting on an 26° incline. The line of action of P passes through the center of gravity of the box. The box is 4.5 ft wide x 4 ft tall, and the coefficents of friction between the box and the surface are us = 0.2 and μk = 0.17. P 26° W 1. Determine the magnitude of the friction force acting on the box. 2. What is the maximum static friction force? 3. What is the friction force if the box starts moving?
A 230 lbs horizontal force P is applied to a 100 lbs box resting on an 26° incline. The line of action of P passes through the center of gravity of the box. The box is 4.5 ft wide x 4 ft tall, and the coefficents of friction between the box and the surface are us = 0.2 and μk = 0.17. P 26° W 1. Determine the magnitude of the friction force acting on the box. 2. What is the maximum static friction force? 3. What is the friction force if the box starts moving?
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
Related questions
Question
According to the answer key-
1. 32.4 lb
2. Fs = 38.1 lb
3. Fk = 32.4 lb
4. No
5. Yes – box is sliding up the incline (to the right)
Transcribed Image Text:A 230 lbs horizontal force P is applied to a 100 lbs box resting on an 26° incline. The line of action of P
passes through the center of gravity of the box. The box is 4.5 ft wide x 4 ft tall, and the coefficents of
friction between the box and the surface are µs = 0.2 and μ = 0.17.
P
26°
W
1. Determine the magnitude of the friction force acting on the box.
2. What is the maximum static friction force?
3. What is the friction force if the box starts moving?
Does tipping occur?
5. Does slipping occur? If so, in what direction?
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