Take the area of the wings on an aircraft to be 25.2 m2. If the aircraft a net mass of 1,641 kg, what velocity does it need to reach on the runway to gain enough lift for take-off (note this ignores ground effect)? Take the velocity along the lower surface of the wings to be the same as that of the aircraft. Take the velocity along the upper surface of the wings to be 42.8% larger than along the bottom. Take the density of air to be 1.29 kg/m.