I stumbled with this problem in a notebook that has been bothering for the whole day(actually 3)...The answer is written but there's no explanation nor a steb-by-step procedure or anything. If you know how to analyse the problem and create an equation from this, I will be very grateful!
A body with mass m falls somewhere where there's a proportional resistance of |V|r, r is a positive constant. Find the velocity's limit of the body. Answer: V=(mg/k)(1/r) Thank you very much for your time, help and expertise.