Okay. So I have this problem that I posted last night. https://www.physicsforums.com/showpost.php?p=1462108&postcount=1 I have solved everything. My problem is that I entered the value of Maximum height above the cliff that I got which was 439.5meters into WebAssign (online homework). The problem is that I am quite positive that the answer should be 439.5-205, because it asks for the height ABOVE the cliff top. But WebAssign accepted the answer that I used (439.5) Am I correct that it should be the difference since I used [tex]v_y^2=(v_0)_y^2+2a\Delta y[/tex] so[tex]0=(155sin37)^219.6\Delta y[/tex] so[tex]\Delta y=439.5[/tex] I am tutoring tonight so I really would like to give this person an unambiguous answer!