# Inertia and angular speed after time T

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If a spool, initially at rest, has a radius R and a moment of inertia I, what is its angular speed after a time t?

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#### Solution Preview

The angular speed wf after time t is related to the original angular speed wo and the angular acceleration a by the equation of motion: (1) wf = wo + a ...

#### Solution Summary

The solution calculates the angular speed after time i of an object with a radius and moment of inertia given.

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