I am trying to calculate the terminal velocity of a solar sail starting at distance 1AU. I know that my sail will accelerate and its acceleration will be inversely proportional to the distance squared. this means that as it moves away from the sun, there are technically fewer photons hitting the surface area and therefore the acceleration of the sail will decrease.
how is it possible to calculate terminal velocity?
I initially thought of tackling the topic through calculating the change in acceleration and I was hoping that would be constant but I strangely find that the jerk (change in acceleration or the third derivative of displacement) is also changing with time. this does not allow me to derive a proper function of velocity with time, initial acceleration, jerk and ...
I have a function of the force exerted on the sail changing with distance, as well as the acceleration changing with distance but I don't know how to get to the velocity of the sail. I know that probably calculus is needed.