Theory and ApplicationsA string lies along the circle x2 +
Chapter 16, Problem 11AAE(choose chapter or problem)
Problem 11AAE
Theory and Applications
A string lies along the circle x2 + y2 = 4 from (2, 0) to (0, 2) in the first quadrant. The density of the string is
a. Partition the string into a finite number of subarcs to show that the work done by gravity to move the string straight down to the x-axis is given by
b. Find the total work done by evaluating the line integral in part (a).
c. Show that the total work done equals the work required to move the string’s center of mass straight down to the x-axis.
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