Answer:
Conservation of angular momentum
Step-by-step explanation:
The rate of change of angular momentum of a particle equals the torque of the net force acting on it is called conservation of angular momentum.
L = ΣF x r = τ
where;
L is the angular momentum of the particle
τ is torque on the particle
r is the distance through which the force act on the particle
ΣF is the net force on the particle
Thus, the rate of change of angular momentum of a particle equals the torque of net force acting on it, (L = τ) and it is called conservation of angular momentum.