Question

Consider a jet on the deck of an aircraft carrier. In order to take off, a catapult is attached to the jet and it is flung off the deck. An F-18 has a gross weight of approximately 17,000 kg and must reach speeds of about 270 km/hr by the end of the 150 m deck. The catapults on aircraft carriers must be able to launch a variety of aircraft that have different masses and minimum air speeds for flight! How would you ensure that you provide enough energy to the aircraft to get it safely off the deck of the aircraft carrier?

Answer 1

Answer:

Energy = 47812500 [J]

Explanation:

This problem can be solved using the principle of energy and work. First we need to identify the input data that give us these are:

m = mass = 17000[kg]

for take-off the airplane needs a velocity of 270 [km/h] = 75[m/s]

distance = d = 150 [m]

Therefore we can calculathe the kinetic energy.

$E_{k}=0.5*m*v^2\\E_{k}=0.5*17000*(75)^2\\E_{k}=47812500[J]$

In this way we need a device that can develop the next Force, this force can be calculated using the working theorem.

W = F * d

F = 47812500 / 150

F = 318750 [N]