QI: A box weighing 100 N is at rest on a horizontal floor. The coefficient of the static friction between the box and the floor is 0.4. What is the smallest force exerted eastward and upward at an angle of 30° with the horizontal that can start the box in motion?
QI: A box weighing 100 N is at rest on a horizontal floor. The coefficient of the static friction between the box and the floor is 0.4. What is the smallest force exerted eastward and upward at an angle of 30° with the horizontal that can start the box in motion?
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 7.57P: The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a...
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