Rotational Kinetic Energy

Written by Jerry Ratzlaff on . Posted in Kinematics

Rotational kinetic energy, abbreviated as \(KE_r\), is the energy an object has because it is rotating and does not matter if its moving from one place to another.

 

Rotational Kinetic Energy formula

\(\large{ KE_r = \frac {1}{2}\; I \; \omega^2 }\) 
Symbol English Metric
\(\large{ KE_r }\) = rotational kinetic energy \(\large{ lbf-ft }\) \(\large{ J }\)
\(\large{ \omega }\)  (Greek symbol omega) = angular velocity \(\large{\frac{deg}{sec}}\) \(\large{\frac{rad}{s}}\)
\(\large{ I }\) = moment of inertia \(\large{ in^4 }\) \(\large{ mm^4 }\)

 

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Tags: Energy Equations Kinetic Equations