I'll get right to the point.
A trough is 3 meters long, 2 meters wide, and 4 meters deep. The vertical cross-section of the trough parallel to an end is shaped like an isoceles triangle (with height 4 meters, and base, on top, of length 2 meters). The trough is full of water (density 1000 kg/m3 ). Find the amount of work in joules required to empty the trough by pumping the water over the top. (Note: Use g=9.8 m/s2 as the acceleration due to gravity.)
Thanks to anyone who can help. Also, if it's not too much trouble, would any would be assistors provide a suggested answer first and then explain how they got it? Rest assured, I have been through the rigamorole trying to figure out what I'm doing wrong on this one, so I don't really need step by step coaching, especially seeing as time is not on my side. Thank you.