A tank is full of water. Find the work required to pump the water out of the outlet.

A tank is full of water. Find the work required to pump the water out of the outlet. In Exercises 23 and 24 use the fact that water weighs 62.5 lb
ft .

[elainek]

You should really not have the 9.8 and the 1000 all on the same line for the first step (i.e. show that you multiply 1000 time volume to get mass, then multiply by 9.8 to get force). Also, it should be 78000*x*(5-x)*delta x in the integral, as delta x becomes dx. (You removed the x then randomly added it back in). It was a good video but it would've been a lot more helpful if you explained more in depth

[theunitvector]

Thanks for this solution, I couldnt solve it the way the text book taught it so this helped tremendously!

[raullazo]

Hey buddy, I think that there is a mistake in your solution: The work is: 78400(5-x)(x+3). Check out!