Fp = Fg b vž = mg mg Vr = b Mr. Aikins dropped from a height of 7.7 km. In less than 20 seconds he had descended 1 km in altitude and had reached terminal speed. But because the density of the air is not constant, it is higher at lower altitude, its terminal velocity slowly decreases as it falls. The density of air is 1.22 kg / m^3 at sea level and 1.11 kg / m^3 at 1 km altitude. Aikins data: mass = 90.8 kg, horizontal body area = 0.56 m^2, Cd = 1.0

Fp = Fg b vž = mg mg Vr = b Mr. Aikins dropped from a height of 7.7 km. In less than 20 seconds he had descended 1 km in altitude and had reached terminal speed. But because the density of the air is not constant, it is higher at lower altitude, its terminal velocity slowly decreases as it falls. The density of air is 1.22 kg / m^3 at sea level and 1.11 kg / m^3 at 1 km altitude. Aikins data: mass = 90.8 kg, horizontal body area = 0.56 m^2, Cd = 1.0