Re:Lion Air crash: Boeing 737 plane crashes in sea off Jakarta
by FabHK on Monday October 29, 2018 @04:57AM
(#18325932)
1/2 mv^2 = mgh, so v = sqrt(2gh).
If all potential energy from an altitude of 5000 ft = 1500 m got converted into velocity, we'd talk about 170 m/s or about 330 knots (and a free fall from that altitude would take about 17 seconds, t = sqrt(2h/g)).
If all potential energy from an altitude of 5000 ft = 1500 m got converted into velocity, we'd talk about 170 m/s or about 330 knots (and a free fall from that altitude would take about 17 seconds, t = sqrt(2h/g)).