The crane truck has a weight of 11750 lb and a center of gravity at point CG. The parking brake only locks the rear wheels of the truck, so the front wheels are free to rotate. Determine the maximum force F applied at the angle 0 = 44.5° that can be exerted on the crane without it slipping or tipping for each of the following cases: Case 1: The static friction coefficient between the rear tires and the ground is µg = 0.13. Case 2: The static friction coefficient between the rear tires and the ground is µ, = 0.53. d ka sk b Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 5 ft 10 ft 4 ft d 4 ft h 11 ft For Case 1, the constraint is Select an answer v and Fmax lbs. For Case 2, the constraint is Select an answer and Fmax lbs. || BY NC SA 2013 Michael Swanbom
The crane truck has a weight of 11750 lb and a center of gravity at point CG. The parking brake only locks the rear wheels of the truck, so the front wheels are free to rotate. Determine the maximum force F applied at the angle 0 = 44.5° that can be exerted on the crane without it slipping or tipping for each of the following cases: Case 1: The static friction coefficient between the rear tires and the ground is µg = 0.13. Case 2: The static friction coefficient between the rear tires and the ground is µ, = 0.53. d ka sk b Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 5 ft 10 ft 4 ft d 4 ft h 11 ft For Case 1, the constraint is Select an answer v and Fmax lbs. For Case 2, the constraint is Select an answer and Fmax lbs. || BY NC SA 2013 Michael Swanbom
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 7.49P
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Data given -
F = 11750 lb
Theta = 44.5°
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