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 February 17th, 2013, 04:10 PM #1 Senior Member   Joined: Mar 2012 Posts: 111 Thanks: 0 Finding mass with two sides with constant density Hi, do for this problem do I do this: integrate 5x-2x from 0 to 3?
 February 17th, 2013, 05:31 PM #2 Member   Joined: Jan 2013 Posts: 93 Thanks: 0 Re: Finding mass with two sides with constant density You don’t need to integrate. Calculate the mass of the left and right halves separately and add. The mass of the left half is $\mathrm{2\ g\,cm^{-1}}\times\mathrm{150\ cm}=\mathrm{300\ g}$. Find the mass of the right half similarly.
 February 17th, 2013, 05:49 PM #3 Senior Member   Joined: Mar 2012 Posts: 111 Thanks: 0 Re: Finding mass with two sides with constant density omg, i spent a long time trying to integrate this thing lol. thanks for explaining.

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