A parachutist having mass m opens his parachute from an at-rest position at a very high altitude. If the atmospheric drag resistance is Fd=kv^2, where k is a constant, determine his velocity when he has fallen for a time t. What is his velocity when

A parachutist having mass m opens his parachute from an at-rest position at a very high altitude. If the atmospheric drag resistance is Fd=kv^2, where k is a constant, determine his velocity when he has fallen for a time t. What is his velocity when he lands on the ground? This velocity is referred to as the terminal velocity, which is found by letting the time of the fall t -> infinity.

This is what the solution looks like, just don't know how to enter it into MATLAB.