(adsbygoogle = window.adsbygoogle || []).push({}); 1. A great conical mound of heighthis built. If the workers simply heap up uniform material found at ground level, and if the total weight of the finished mound isM, show that the work they do is .25hM

So I related weight density to mass by using volume of a cone and got [tex]w = \frac{3M}{R^{2}\pi h}[/tex].

I used "r" as the radius of dW. and I got r = xR/h (not sure if this part is right) which would make [tex]W = \int w(xR/h)^{2}\pi xdx[/tex] from 0 to h.

Where am I messing up? Thanks.

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# Homework Help: Work and Mass problem

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