rotational kinetic energy

Question

Rotational kinetic energy of rigid body is:

RankGuru · Accepted Answer

Kinetic energy associated with pure rotation is analogous to translational kinetic energy ($K_{trans} = \frac{1}{2} m v^2$). Replacing mass $m$ with moment of inertia $I$ and linear speed $v$ with angular speed $\omega$:
$K_{rot} = \frac{1}{2} I \omega^2$
- SI Unit: Joules ($J$).
- For a rolling object, the total kinetic energy is the sum of translational and rotational components.

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More rotational kinetic energy Practice Questions

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