- #1
i.mehrzad
- 84
- 0
If i take a long rod and calculate the MI about an axis running through the rod the MI when i take the origin as the center of the rod as origin is 1/6mr^2(i.e.1/12+1/12 with the held of perpendicular axis theorem). If i take the MI about the axis keeping the origin at the end of the rod the value becomes 1/3+1/3 i.e. 2/3.
Isn't the MI about the axis through the cylinder supposed to be the same because i cannot imagine any difference in the motion of the rod.
But there is supposed to be some difference? Where is it?
Isn't the MI about the axis through the cylinder supposed to be the same because i cannot imagine any difference in the motion of the rod.
But there is supposed to be some difference? Where is it?