Calculate the moment of inertia of the steel plate of mass m = 900 g in the figure below for rotation about a perpendicular axis passing through the origin.

Hint. Divide the triangle into small squares of area dxdy, find the moment of inertia of a square at (x,y), then figure out how to integrate this over the triangle.

 

Transcribed Image Text:

30 cm 20cm X 30 cm 20cm X