A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 38 lb of water and is pulled up at a rate of 2.5 ft/s, but water leaks out of a hole in the bucket at a rate of 0.25 lb/s. Find the work done in pulling the bucket to the top of the well. Show how to approximate the required work by a Riemann sum. (Let x be the height in feet above the bottom of the well. Enter x;* as xi.) n lim 00+U Ax Express the work as an integral. Evaluate the integral. ft-lb Need Help? Talk to a Tutor

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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A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 38 lb of water and is pulled up at a
rate of 2.5 ft/s, but water leaks out of a hole in the bucket at a rate of 0.25 lb/s. Find the work done in pulling the bucket to the top of the well.
Show how to approximate the required work by a Riemann sum. (Let x be the height in feet above the bottom of the well. Enter x₁* as x₁.)
lim
n→∞;=1
Express the work as an integral.
Evaluate the integral.
ft-lb
Ax
Need Help? Talk to a Tutor
dx
Transcribed Image Text:A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 70 ft deep. The bucket is filled with 38 lb of water and is pulled up at a rate of 2.5 ft/s, but water leaks out of a hole in the bucket at a rate of 0.25 lb/s. Find the work done in pulling the bucket to the top of the well. Show how to approximate the required work by a Riemann sum. (Let x be the height in feet above the bottom of the well. Enter x₁* as x₁.) lim n→∞;=1 Express the work as an integral. Evaluate the integral. ft-lb Ax Need Help? Talk to a Tutor dx
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ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,