<Tr> <Td> Rod of length L and mass m, rotating about its center . <P> This expression assumes that the rod is an infinitely thin (but rigid) wire . This is a special case of the thin rectangular plate with axis of rotation at the center of the plate, with w = L and h = 0 . </P> </Td> <Td> </Td> <Td> I c e n t e r = m L 2 12 (\ displaystyle I_ (\ mathrm (center)) = (\ frac (mL ^ (2)) (12)) \, \!) </Td> </Tr> <P> This expression assumes that the rod is an infinitely thin (but rigid) wire . This is a special case of the thin rectangular plate with axis of rotation at the center of the plate, with w = L and h = 0 . </P> <Tr> <Td> Rod of length L and mass m, rotating about one end . <P> This expression assumes that the rod is an infinitely thin (but rigid) wire . This is also a special case of the thin rectangular plate with axis of rotation at the end of the plate, with h = L and w = 0 . </P> </Td> <Td> </Td> <Td> I e n d = m L 2 3 (\ displaystyle I_ (\ mathrm (end)) = (\ frac (mL ^ (2)) (3)) \, \!) </Td> </Tr> <P> This expression assumes that the rod is an infinitely thin (but rigid) wire . This is also a special case of the thin rectangular plate with axis of rotation at the end of the plate, with h = L and w = 0 . </P>

Moment of inertia of rod about one end
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