Angular momentum about a particular
axis is conserved as long as no external forces are acting which produce a
torque about that axis.
In situations where angular momentum
is conserved, any change in the moment of inertia of an object causes an opposite
change in the angular velocity of the object.
In situations where angular momentum
is conserved, producing angular momentum by moving one component of the object,
generates motion of other parts of the object in the opposite direction. This
keeps the total angular momentum of the system constant.
In situations where angular momentum
is conserved, you can calculate the changes in moment or inertia and angular
velocity of an object by using the formula...
