Through the formula V2-V02=2ax?
Substituting the data, we get: V0=30m/s?
(2) When the ejection system is not installed, the plane will move in a straight line at a constant speed from rest. According to the kinematic formula, the hull length of the ship is at least:
x=V22a=2500 10m=250m
Answer: (1) The ejection system must make the aircraft have an initial velocity of 30 m/s. 。
(2) The hull length should be at least 250 meters.