how far do you fall in two seconds
Equations for a falling body The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 meters. After two seconds it will have fallen 1/2 × 9.8 × 22 = 19.6 meters; and so on. The second to last equation becomes grossly inaccurate at great distances. If an object fell 10,000 meters to Earth, then the results of both equations differ by only 0.08%; however, if it fell from geosynchronous orbit, which is 42,164 km, then the difference changes to almost 64%.
Footspeed The record was 44.72 km/h (27.8 mph), seen during the final 100 meters sprint of the World Championships in Berlin on 16 August 2009 by Usain Bolt.[4] (Bolt's average speed over the course of this race was 37.58 km/h or 23.35 mph.)[5] Maximum human sprint speed is strikingly slower than that of many animals. Compared to other land animals, humans are exceptionally capable of endurance, but incapable of great speed.[6] For example, cheetahs can attain short bursts of speed well over 100 km/h (62 mph),[7] the American quarter horse has topped 88 km/h (55 mph),[8] greyhounds can reach 70 km/h (43 mph), and the Mongolian wild ass has been measured at 64 km/h (40 mph).[9] Even the domestic cat may reach 48 km/h (30 mph).[9]