Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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A cable that weighs 8 lb/ft is used to lift 600 lb of coal up a mine shaft 700 ft deep. Find the work done.
Show how to approximate the required work by a Riemann sum. (Let x be the distance in feet below the top of the shaft. Enter x,* as x₁.)
lim
n100
Ax
Express the work as an integral.
Evaluate the integral.
ft-lb
dx
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Transcribed Image Text:A cable that weighs 8 lb/ft is used to lift 600 lb of coal up a mine shaft 700 ft deep. Find the work done. Show how to approximate the required work by a Riemann sum. (Let x be the distance in feet below the top of the shaft. Enter x,* as x₁.) lim n100 Ax Express the work as an integral. Evaluate the integral. ft-lb dx
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