Yes we know it’s only a short period of time. But power is work/time. Doesn’t really care if it’s a rocket or bike or 3 seconds or not. Power is power....No one said anything about putting 500hp on a bicycle.That rocket bike btw is thrust and makes over 1000 kg of it for 2 seconds,try that math LOL
depends on friction coefficent of the ground. In space, its possible, but not on earth..... You would be traveling at that speed for ever in a straight line basically.... Can be calculated with the momentum equation m1v1 = m2v2. If you weigh 100kg and want to get 1.4 m/s, you would need to have 100kg of gas at 1.4 m/s to propel you, or 1kg at 140m/s or 2 kg at 70m/s etc.... in space, but on earth, wont work b/c of friction and stuff. 1.4m/s = 5kmhHow long and hard would I have to fart to propel myself to 5 km/h? And should I tuck in and wear spandex?