I took physics in high school AND college, but I’m befuddled by the math used in the Rocket example. I looked it up and thrust is a Force, which means that:
whose units are:
…which according to the interwebs is called Impulse. How do you get from an Impulse to an acceleration…because eventually you want to write:
Acceleration has the units m/s^2, so you would have to multiply thrustToApply by something with the units 1/kg-s:
Yet the text multiplies thrustToApply by a variable named direction. How does a direction have units 1/kg-s? So the thrust used in the text must not be a Force. Then, what is the thrust in the example?