Click on comments at the bottom of this post and answer the questions. The best 5 answers will each receive a mars bar.
First of all watch this clip of a Boeing 767 take off.
A Boeing 767 is travelling at 80 meters per second when it takes off.
(1) What is the speed of the aircraft in kilometers per hour
(2) How long does it take for the aircraft to reach its take off speed from the start (when it is stationary).Time to the point the aircraft just begins to lift off the runway
(3) Use this time to calculate the acceleration of the aircraft as it moves down the runway.
The equation you need is a = (change in speed)/change in time
(4) Calculate the total thrust needed to produce this acceleration by using the equation:
The aircraft weighs approximately 200,000Kg when it is fully laden. Remember to use the correct units in your answer.
(5) The shape of the aircraft wing changes as it approaches cloud level. Why is the wing designed to behave in this way.
(6) What airport do you think the aircraft is taking off from, why?
Finally click on the blue comments button below this post to leave your your answers. You will be asked for an email address and there may be a delay in your comment appearing on the blog.
2) 28 seconds
3) 2880/28=103 103kmphs-1-1
5) Because of the aerodynamics of the plane so that it can fly in a straight line rather than ascending or descending
6) Auckland, because it is surrounded by water just like the airport in the movie clip
Can i have a Mars Bar for this now please? 🙂
5)As an airplane speeds along the runway, the airplane’s wings disrupt the flow of the air. This disruption causes the air above the wings to move faster than below the wings1. As a result, the air pressure above the wing is less than below the wing. As the airplane speeds up, this pressure difference increases until the lift is stronger than the gravitational force, and the airplane takes off. In order to remain in flight, the thrust must be greater than the drag, and lift must be greater than the force of gravity.