All of the above objects have the same mass M, and the same radial distance R from the axis of rotation as shown. Which of these objects has the largest moment of inertia about the central axis? (Show work to explain why!)
for point mass,
I = MR2
for hoop
I = MR2
for disk
I = 1/2 MR2
for sphere
I = 2/5 MR2
for rod at end
I = MR2 / 3
so,
hoop and point mass have the largest moment of inertia about given axis, MR2
All of the above objects have the same mass M, and the same radial distance R from the axis of rotation as shown.
All of the above objects have the same mass M, and the same radial distance R from the axis of rotation as shown. Which of these objects has the largest moment of inertia about the central axis? (Show work to explain why)
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