Question

Let's model an airplane propeller as 4, 0.25 m long thin rods of mass 0.040 kg. Calculate the moment of inertia of the propeller assuming they each rotate about an axis at the end. Hint: Treat the blades as long uniform rods.

Answer 1

I of each: 1/3 ml^2
total Inertia: 4*1/3*(.040)*.25^2