△Work = △KE + △PE Work = Force x Distance W=F△x Pressure = Force/Area W=PA△x Volume=Area x length W=PV Work = Pressure x Volume KE=(1/2)mv^2 Density = mass/volume mass = density x volume m=DV KE=(1/2)DVv^2 (work done by air pressure?) PE=mgy PE=DVgy (work done by gravity and air pressure??) PV=(1/2)DVv^2 + DVgy P=(1/2)Dv^2 + Dgy F=PA F=(1/2)Dv^2A + DgyA (final equation?) Final equation I was expecting was F= ½DCAv2 I'm so confused right now. can you guys help me fix the equation?