My homework problem goes like this: A uniform plate of height H = 1.39 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 0.25 x2. The plate has a mass of 4.67 kg. Find the moment of inertia of the plate (in kgm2) about the y-axis. I know I=int(r^2)dm, but I don't know really how to apply it to this problem. I need some help getting started, or even some info on calculating moments of inertia of random objects. Thank you.