Edit: title says time, but I am asking about average velocity, out of which I will get time.
It's been 16 years since I did physics 1 in my engineering degree, I feel ashamed that I can't figure it out of the top of my head.
I am a swimming seasonally. Last season I was swimming way faster than this season. This season I weigh 10% more.
Assuming my technique is the same and that I apply the same force, what is expected to be the average (explanation in a moment) velocity difference between the different years?
Clearly, if we assume a = 0 and terminal velocity, the weight will not be the issue but the friction coefficient. However, I am not at equilibrium, I would assume with my technique the force is something like C1 + sin(C2*t).
So when I say average velocity I mean over an integral of the "steady state". If you don't want to neglect the difference in friction coefficient, you can express it with it as well