I would like someone to solve the 4 th question using the data from the 3 rd .Pl

Question

I would like someone to solve the 4 th question using the data from the 3 rd .Please give a detialed explanation and answer in the form of an uploaded image as I do not understand the computer notation. A satisfactory answer will be rewarded with points immediately.thanks. Be careful while setting the limits of integration.

A thin rod 10 ft long has a density which varies uniformly from 4 to 24 lb/ft. Find Im about an axis perpendicular to the rod, I about an axis perpendicular to the rod passing through the heavy end. Repeat Problem 3 for a rod of length I with density varying uniformly from 2 to 1.

Explanation / Answer

All the answers will come -ve but just take modulus

pls read all question marks as integration

Here is the answer

(a) dm=(2x+4)dx

, then integrate between 0 and 10 to get 140 lbs.

M=integeral(dm)

For the problem (4)

dm=(1/l)*x+1.dx thinking that integration starts from the lighter end

, then integrate between 0 and l to get = (1/2*l)*l^2+l =1.5 l lbs.

(b)From

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