A 75-Kg man wants to pull a 145- Kg box and the coefficient of static friction betwe and the ground is u, = 0.3, while the coefficient of static friction between the man's sl the ground is μ = 0.4. Determine the following: 1- If the man can move the crate, and the tension force is in the cable. 2- The minimum coefficient of static friction is between the man's shoes and the gr that the man can move the crate. »)

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 7.90RP: The screw of the clamp has a square thread of pitch 0.16 in. and a mean diameter of 0.6 in. The...
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Q1-A 75-Kg man wants to pull a 145- Kg box and the coefficient of static friction between the box
and the ground is u, = 0.3, while the coefficient of static friction between the man's shoes and
the ground is = 0.4. Determine the following:
1- If the man can move the crate, and the tension force is in the cable.
2- The minimum coefficient of static friction is between the man's shoes and the ground, so
that the man can move the crate.
20
Transcribed Image Text:Q1-A 75-Kg man wants to pull a 145- Kg box and the coefficient of static friction between the box and the ground is u, = 0.3, while the coefficient of static friction between the man's shoes and the ground is = 0.4. Determine the following: 1- If the man can move the crate, and the tension force is in the cable. 2- The minimum coefficient of static friction is between the man's shoes and the ground, so that the man can move the crate. 20
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