2006-08-14 23:50:25 · 12 answers · asked by sparkly star 1 in Science & Mathematics ➔ Earth Sciences & Geology
Gravity does act on aeroplaens. Thats why theres the need for areodynamics and the lift effect under the wings to over come the force of gravity.
2006-08-14 23:57:49 · answer #1 · answered by andrew b 2 · 0⤊ 1⤋
Gravity acts on everything that has mass including airplanes.
An airplane can fly b/c of several factors. The engine gives the motion needed to propel it forward but it is the flaps & the shape of the wings that gives it lift & bouyancy.
The flaps are located on the wings of the plane. They are controlled by the pilot so that they can either create lift or drag. Lift is desired when going up & drag when lowering & landing the plane.
The shape of the wing is very important in that it creates lift & allows the plane to be bouyant. The lower portion of the wing is rounded while the top is flatter.
Because of their shape, low pressure is created above the wings which, in turn, causes the air beneath to lift the wings. In physics, this is called Bernoulli's principle.
A simple demonstration of Bernoulli's principle can be done w/ a sheet of paper. Lay a piece of uncrumpled paper flat on a table. Blow across the top of the paper so that you are parallel to the plain of the paper (do not blow under the paper). What you will see is the piece of paper lifting off the table. Why? B/c you created lower pressure above the paper. The pressure beneath the paper is higher so will cause the paper to lift off of the table.
A combination of lift, shape of the wings, & propelling cause a plane to "defy" gravity. Of course, if the engine were to die then gravity would take over & the plane would crash.
2006-08-15 05:50:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Gravity does exert pull on a flying airplane but it is overcome by the force of the greater air pressure under the wings than over them due to the design of the wings and their forward motion thru the air. In the case of bladed helicopters the blades themselves create both the motive power for forward motion and the unequal pressure need for lift.
2006-08-15 00:20:04 · answer #3 · answered by jshalejhale 1 · 1⤊ 0⤋
the gravity pulls the aeroplane but the engine left it up with the aid of winds and air ,, so we can see tree leaf flying but after while fill down
2006-08-15 00:02:13 · answer #4 · answered by source_of_love_69 3 · 0⤊ 1⤋
It does pull and it is being overcome by the force produced by the engines. An object in motion has to overcome gravity to stay in motion whether in land or in the atmosphere with gravitional limits.
VR
2006-08-15 02:19:20 · answer #5 · answered by sarayu 7 · 0⤊ 0⤋
the force of gravity is countered by the force of lift produce at the wings of aeroplane
2006-08-15 00:39:40 · answer #6 · answered by sinder_block 2 · 1⤊ 0⤋
Why not learn grammar before moving on to things as complicated as gravity. If gravity did not pull the plane then they would never come back to earth. DUH
OH! By the way you may want to try using the spell check provided. You want look so stupid.
2006-08-15 01:13:32 · answer #7 · answered by Here's your answer or questi 2 · 0⤊ 2⤋
The wing folats over the air. The engine pulls the wings.
2006-08-15 03:55:57 · answer #8 · answered by Dr M 5 · 0⤊ 1⤋
becoz the gravity is not strong enuff to pull the plane down?? lolx!!!
2006-08-14 23:56:52 · answer #9 · answered by yohliying 1 · 0⤊ 1⤋
It does. That`s why the plane needs a motor.
2006-08-16 06:38:25 · answer #10 · answered by geaaronson 2 · 0⤊ 1⤋