Assuming that drag is proportional to the square of velocity, we can model the velocity of a falling object like a parachutist with the following differential equation: du Cd g dt = m where v is velocity (m/s), f = time (s), g is the acceleration due to gravity (9.81 m/s-), ca = a second-order drag coefficient (kg/m), and m = mass (kg). Solve for the velocity and distance fallen by a 90-kg object with a drag coefficient of 0.225 kg/m. If the initial height is 1 km, determine when it hits the ground. Obtain your so- lution with (a) Euler's method