Rotational kinetic energy | Moments, torque, and angular momentum | Physics | Khan Academy
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In this video David explains what rotational kinetic energy is and how to calculate it.
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Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
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