400 inch-lbs of work is required to stretch a spring from its rest length to 10 inches beyond its rest length. Find a such that it requires 200 inch-lbs to stretch the spring from its rest length to a inches beyond its rest length (that is, half the work is done stretching the spring from 0 to a inches)

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter59: Areas Of Rectangles, Parallelograms, And Trapezoids
Section: Chapter Questions
Problem 79A
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400 inch-lbs of work is required to stretch a spring from its rest length to
10 inches beyond its rest length. Find a such that it requires 200 inch-Ibs
to stretch the spring from its rest length to a inches beyond its rest length
(that is, half the work is done stretching the spring from 0 to a inches)
Transcribed Image Text:400 inch-lbs of work is required to stretch a spring from its rest length to 10 inches beyond its rest length. Find a such that it requires 200 inch-Ibs to stretch the spring from its rest length to a inches beyond its rest length (that is, half the work is done stretching the spring from 0 to a inches)
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