how do i calculate the gradual reduction of angular momentum a rocket initially has before it fires its main rocket engines? im assuming if the thrust is high enough then the rocket should eventually stop rotating and travel in a straight line. assume the rocket is in a universe without planets and is just floating in space. would the shape and mass distribution of this hypothetical spacecraft matter? for example, if its a sphere like in hitch hikers guide to the galaxy as the heart of gold vs a saturn V rocket?