Kinetic Energy
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Kinetic energy represents the energy asociated with the motion of an object.[1] It is defined as:
K ≡ mv2 / 2 for a point mass and 
for a body, where I is the body's moment of inertia and omega is the body's angular velocity.
The change of kinetic energy in an object is equal to the total work done on it by a force. In the case of constant force, this can be expressed as:
ΣW = ΔK = mvf2 / 2 - mvi2 / 2
Where vi is speed at t = 0 and vf is speed at time = t.
Kinetic energy is a scalar and has the same units as work (i.e. Joule).
References
- ↑ Serway and Beichner, Physics for Scientists and Engineers, Fifth Edition
