Angular momentum

Rotating bodies show the same reluctance to changing their angular velocity as bodies moving in a straight line do to changing their linear velocity. This is due to a property of the object known as its angular momentum.

The angular momentum of the mass is defined as the moment of the momentum about the centre of rotation.

Angular momentum of body of moment of inertia I = Iw
The units for angular momentum are kg m² radian s^-1

The application of a torque C for a certain time t will change the angular velocity from wo to w1 and so give a change of angular momentum of the object.

Angular momentum change = Ct = Iw₁ - Iw_o