PRACTICE / Parallel-axis theorem

Move the rotation axis

A rigid body has mass 2 kg and moment of inertia 0.10 kg·m² about a centre-of-mass axis. A parallel axis is 0.30 m away.

Find its moment of inertia about the new axis.

1. A$0.18\ \mathrm{kg\,m^2}$
2. B$-0.08\ \mathrm{kg\,m^2}$
3. C$0.28\ \mathrm{kg\,m^2}$
4. D$0.70\ \mathrm{kg\,m^2}$

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