26 Feb '08 04:29>
An airplane weighing 175,000 kilograms begins accelerating at 2.2 meters per second per second at an angle 12 degrees above the horizon. How long will it take before the airplane takes off?
Originally posted by wittywonkaWhen the plane reaches rotation speed and the pilot pulls up.
An airplane weighing 175,000 kilograms begins accelerating at 2.2 meters per second per second at an angle 12 degrees above the horizon. How long will it take before the airplane takes off?
Originally posted by mlpriorHe has a point, anyone who has studied physics could probably answer this but then you wouldn't learn....
When the plane reaches rotation speed and the pilot pulls up.
🙂
Aren't you supposed to be doing your own homework kiddo?
Originally posted by wittywonkaDo you have an answer yet?
An airplane weighing 175,000 kilograms begins accelerating at 2.2 meters per second per second at an angle 12 degrees above the horizon. How long will it take before the airplane takes off?
Originally posted by MexicoGood point!
More Importantly Is the pilot a loaf of bread, cause if thats the case then the plane aint going anywhere
Originally posted by mlpriorIf your already near the loaf of bread you already in the plane therefore its a closed system, and not mass is gained..... Unless of course your hiding a revolutionary piece of equipment in your stomach which can convert energy into mass using bread as a catalyst..... Are you? I demand that you share this with the scientific community at large...
Good point!
I will eat the bread and a quarter pounder with cheese, thus increasing the overall mass by .3 pounds.
Originally posted by wittywonkaTake it to "Posers & Puzzles", Spanky!
An airplane weighing 175,000 kilograms begins accelerating at 2.2 meters per second per second at an angle 12 degrees above the horizon. How long will it take before the airplane takes off?
Originally posted by wittywonkaIs it a ballistic aeroplane or is it one that acts aerodynamically?
Ha, well, I confess that I have had physics problems like this one, but this isn't specifically one of my homework problems. Sorry for that confusion.
As proof, I'll solve it (at least I hope).
Because the airplane is accelerating at 2.2 m/s^2 at an angle of 12 degrees, we start by finding the y-axis component of that acceleration, which we ...[text shortened]... y [b]21.3 seconds (1,716,750/80,500).
Feel free to correct me if I am indeed mistaken.[/b]
Originally posted by wittywonkawrong.
Ha, well, I confess that I have had physics problems like this one, but this isn't specifically one of my homework problems. Sorry for that confusion.
As proof, I'll solve it (at least I hope).
Because the airplane is accelerating at 2.2 m/s^2 at an angle of 12 degrees, we start by finding the y-axis component of that acceleration, which we ...[text shortened]... y [b]21.3 seconds (1,716,750/80,500).
Feel free to correct me if I am indeed mistaken.[/b]
Originally posted by serigadoI think the problem was simplified to ignore wing lift and assume the 12 degrees was simply it taking off..... Like many other basic physics problems....
wrong.
the plane will never take off, unless you consider the lift caused in the wings (proportional to the horizontal speed). But that's not included in the problem.
The plane in the problem will always have the same vertical and horizontal acceleration, and will never overcome gravity.