Flight - Equilibrium

[captain_kirk]

okay, so i wasnt quite sure about the applications of translational and rotational equilibriums. i understand the concept, that for a rotational equilibrium the sum of the torques is 0 and for a translational equilibrium the sum of the forces acting on the body is 0, what i don't quite get is when these equilbrium's are applicable to the flight of a rocket.


so i get that at point A the rocket is at translational equilibrium because it hasnt moved and is at rest, correct? thus would be the same at point C as that is when it reaches the ground and is again at rest. but when is it there a rotational equilibrium and is it the rocket at a translational equilibrium at point B, the turning point and max height?

thanks