1 Physics -- Rotational Dynamics

How might you determine experimentally the moment of inertia of an irregularly shaped body about a given axis?

1 Answers

Using the parallel axis theorem

We note the angular speed and also the system energy. Using these information we calculate the moment of inertia of irregular shaped body.

Io=2E/w²

When we have moment of inertia of irregular shaped body, we can then use parallel axis theorem to solve the moment of inertia if the body about the given axis.

I=Io+md²

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