A physically small (treat as a point mass) box weighing 80 lb is sitting on a floor. The coefficients of static and kinetic friction are 0.62 and 0.44, respectively. Calculate A) The friction force and the resultant horizontal force when a horizontal force of F 49 lbs is applied to the box. B) The friction force and the resultant horizontal force when a horizontal force of F = 50 lbs is applied.

A physically small (treat as a point mass) box weighing 80 lb is sitting on a floor. The coefficients of static and kinetic friction are 0.62 and 0.44, respectively. Calculate A) The friction force and the resultant horizontal force when a horizontal force of F 49 lbs is applied to the box. B) The friction force and the resultant horizontal force when a horizontal force of F = 50 lbs is applied.

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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