An unstretched spring is 1Oft long. A pull of 40lb stretches the spring to 10in. Find the work done in stretching the spring from 10ft to 14ft.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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An unstretched spring is 10ft long. A pull of 40lb stretches the spring to 10in. Find the work
done in stretching the spring from 10ft to 14ft.
Select one:
Oa. 450 ft-lb
Ob. 580 ft-lb
c. 640 ft-lb
Od. 800 ft-lb
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Transcribed Image Text:16 of X An unstretched spring is 10ft lor X+ https://umindanao.mrooms.net/mod/quiz/attempt.php?attempt3D707814&cmid%3D311745&page%3D15 03(5042)3B Question 16 Not yet answered Marked out of 1.00 P Flag question An unstretched spring is 10ft long. A pull of 40lb stretches the spring to 10in. Find the work done in stretching the spring from 10ft to 14ft. Select one: Oa. 450 ft-lb Ob. 580 ft-lb c. 640 ft-lb Od. 800 ft-lb Next page left 0:15:44 Quiz navigation 60% P Type here to search
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