English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

a)the gravity does not act on bodies moving with high speed
b)the thrust of the jet compensates the force of the gravity
c)the flow of air around the wings causes an upward force which compensates for the force of gravity
d)the weight of air whose volume is equal to the volume of plane is more than the weight of the plane

i guess the ans is b or c what do u think??

2007-05-08 20:13:04 · 8 answers · asked by chocky gal 2 in Science & Mathematics Physics

8 answers

The answer is "c"

The upward force is called Lift and its resultant acts in the direction opposite that of gravity.

2007-05-09 16:38:39 · answer #1 · answered by ? 6 · 0 0

C... shape of the wing is called an airfoil and the air travels more quickly across the top and less quickly across the bottom... the slower moving air exerts a higher pressure causing the plane to achieve lift.

2007-05-08 20:20:35 · answer #2 · answered by Anonymous · 0 0

c is correct.

For the record, a jet plane flies for exactly the same reason that a propeller plane flies or a glider flies. The only difference is the source of the thrust that generates the airflow.

2007-05-08 20:22:42 · answer #3 · answered by Warren D 7 · 0 0

C is the right awnser bcz even as air flows over a curved wing the rigidity on good of the wing is decrease than below it so it creates carry, once you upload propulsion, you get significant carry, thats the secret to flying heavier than air airplane.

2016-11-26 21:04:33 · answer #4 · answered by ? 4 · 0 0

when jet plane flying, air passing through its wings and angle or wings is such as the air pressure below the wings is more then upper side of wings
so due to this aerodynamic effect plane can fly against gravitly
any doubt u can ask

2007-05-08 20:26:48 · answer #5 · answered by Anonymous · 0 0

Its C... no different to any plane, except the jet pushes it forward

2007-05-08 20:44:40 · answer #6 · answered by Anonymous · 0 0

The answer is C

2007-05-08 20:22:25 · answer #7 · answered by Mack 1 · 0 0

c

2007-05-08 20:21:57 · answer #8 · answered by kt 2 · 0 0

fedest.com, questions and answers