Kinetic Energy

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Kinetic Energy

Kinetic energy is the energy in moving objects or mass.  If it moves, it has kinetic energy.

Kinetic Energy formula

\(KE = \frac {1}{2} m v^2 \)

\(KE = \frac {P^2}{2m}\)

Where:

\(KE \) = kinetic energy

\(m\) = mass

\(v\) = velocity

\(P\) = power

Solve for:

\(m = \frac {2   KE}{v^2} \)

\(v = \sqrt {   \frac {2   KE}{m} } \)

Rotational Kinetic Energy

Rotational Kinetic Energy formula

\(KE_r = \frac {1}{2} I \omega^2 \)

Where:

\(KE_r \) = rotational kinetic energy

\(I\) = moment of inertia

\(\omega\) (Greek symbol omega) = angular velocity

 

Tags: Equations for Energy