# Physics

posted by .

A Pratt and whitney PW4000 turbofan engine is able to provide a maximum thrust of 2.49 x 100000 N.A Boeing 747-400 airliner has four of these engines. If its mass is 2.72 x 100000 kg, what is its acceleration?

• Physics -

That will depend upon the aerodynamic drag, which was not provided.

If the drag were zero, the acceleration would be F/m =
4*2.49*10^5/2.72*10^5 m/s^2
= 3.67 m/s^2

Zero drag is a fair approximation at low speeds, e.g. takeoff.

• Physics -

That will depend upon the aerodynamic drag, which was not provided.

If the drag were zero, the acceleration would be F/m =
4*2.49*10^5/2.72*10^5 m/s^2
= 3.67 m/s^2

Zero drag is a fair approximation at low speeds, e.g. takeoff.

## Similar Questions

1. ### physics

Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration …
2. ### physics

1. How much acceleration does a 747 jumbo jet of mass 31600 kg experience in takeoff when the thrust for each of four engines is 30000 N?
3. ### physics

In December of 1989, a KLM Boeing 747 airplane carrying 231 passengers entered a cloud of ejecta from an Alaskan volcanic eruption. All four engines went out, and the plane fell from 27800 ft to 13700 ft before the engines could be …
4. ### Physics

What is the kinetic and potential energy of a Boeing 747 airliner weighing 2.48 106 N, flying at 268 m/s (i.e., 600 mi/h) at an altitude of 6.2 km (i.e., 20 103 ft)?
5. ### Physics(IMPORTANT)

An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort …
6. ### Physics

An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort …
7. ### Physics (elena) help!!!

An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort …
8. ### PHYSICS(HELP!!!!!)

An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort …
9. ### physics(URGENT)

An airliner makes an emergency landing with its nose wheel locked in a position perpendicular to its normal rolling position. The forces acting to stop the airliner arise from friction due to the wheels and from the breaking effort …
10. ### Physical Science

Suppose the jumbo jet of mass 30000 kg flies against an air resistance of 82000 N while the thrust of all four engines is 100000 N. Find the acceleration

More Similar Questions