A spring, whose equilibrium length is 3 ft, extends to a length of 6 ft when a force of 13 lb is applied. If 8 ft-lb of work is required to extend this spring from its equilibrium position, what is its total length? (Use symbolic notation and fractions where needed.)

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter2: Newtonian Mechanics-single Particle
Section: Chapter Questions
Problem 2.27P: A rope having a total mass of 0.4 kg and total length 4 m has 0.6 m of the rope hanging vertically...
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A spring, whose equilibrium length is 3 ft, extends to a length of 6 ft when a force of 13 lb is applied. If 8 ft-lb of work is
required to extend this spring from its equilibrium position, what is its total length?
(Use symbolic notation and fractions where needed.)
Transcribed Image Text:A spring, whose equilibrium length is 3 ft, extends to a length of 6 ft when a force of 13 lb is applied. If 8 ft-lb of work is required to extend this spring from its equilibrium position, what is its total length? (Use symbolic notation and fractions where needed.)
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