Changes

K ≡ [[mass|m]][[velocity|v]]² / 2 for a point mass and <math> K = {1 \over 2}mV^2 + {1 \over 2} I \omega ^2 </math> for a rigid body, where I is the body's moment of inertia and omega is the body's angular velocity.

K ≡ [[mass|m]][[velocity|v]]² / 2 for a point mass and <math> K = {1 \over 2}mV^2 + {1 \over 2} I \omega ^2 </math> for a rigid body, where I is the body's moment of inertia and omega is the body's angular velocity.

The change of kinetic energy is equal to the total [[work]] done on it by the resultant of all [[force|forces]] acting on it. For a point mass this can be expressed as:

The change of kinetic energy is equal to the total [[work]] done on it by the resultant of all [[force]]s acting on it. For a point mass this can be expressed as:

Σ''W'' = ΔK = mv_f² / 2 - mv_i² / 2

Σ''W'' = ΔK = mv_f² / 2 - mv_i² / 2

==References==

==References==

<references/>

<references/>

[[category:physics]]

[[Category:Physics]]

[[Category:mechanics]]

[[Category:Mechanics]]