This is my first question so please excuse me if my format is a bit off.
Given a 2D rigid body with forces applied to it in such a way that the angle the force vector makes with the surface of the object remains constant (think of a spaceship with fixed rockets attached to it), I have problems mapping out it's trajectory and angle it has rotated respect the starting position over a certain period of time.
The net force from the rockets applied on the centre of mass of this object is easy to calculate on a local reference solitary to said object, but given the existence of external torque, it is a reference possessed by angular acceleration, which unsettles me as I do not know if this requires any extra considerations when translating that to a general reference.
Determining the centre of rotation is also difficult, as from what I have researched, it's bound to be the centrer of mass, wherever the forces I've applied are at, although this seems unintuitive to me.