A parachutist is dropped from an airplane at a height of 600 meters (m). After 5 seconds (s) the parachute opens. The governing equation that describes the parachutist's height as a function of time is given by: d?y 4 = -mg + 15 m dt2 where y is the height (m), t is time (s), m = 80 kg is the parachutist's mass, g = 9.81 m/s is the acceleration due to gravity, and v is the parachutist velocity (m/s) which is defined as the height derivative to time. Use the Euler's method to find y(15) using a step of 5 s given that y(0) = 600 and y'(0) = 0. %3D