A cable that weighs 6 lb/ft is used to lift 800 lb of coal up a mine shaft 450 ft deep. Find the work done.A.) 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 xi* as xi.) B.) Express the work as an integral. C.)Evaluate the integral.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter65: Achievement Review—section Six
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Problem 54AR: Solve these prism and cylinder exercises. Where necessary, round the answers to 2 decimal places...
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A cable that weighs 6 lb/ft is used to lift 800 lb of coal up a mine shaft 450 ft deep. Find the work done.

A.) 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 xi* as xi.)

B.) Express the work as an integral.

C.)Evaluate the integral.

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ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,