Physics Problem

[madurax86]

A plane is standing on a large treadmill or conveyor belt. The plane moves in one direction, while the conveyor moves in the opposite direction. This conveyor has a control system that tracks the plane speed and tunes the speed of the conveyor to be exactly the same (but in the opposite direction). Can the plane take off?

Please give the proof too ...
























Answer is : IT CAN TAKE OFF
watch the video : http://www.elakiri.com/forum/showpost.php?p=5464175&postcount=20

 

[thimal3000]

mata therune na wahe

 

[siri24]

etakota plane eka ekamatanane ban tiyenne..

 

[thimal3000]

owne
treadmill eke speed ekai plane eke speed ekai ekamanam plane eka issarahata yanne nane. takeoff karanna plane eka move wenne na
eka nisa take off karanna ba :l

 

[madurax86]

etakota plane eka ekamatanane ban tiyenne..

ඔ‍ව්‍ ප්‍ර‍ශ්නෙන් අහන්නෙ එහෙම තියෙද්දී(එන්ජින් on කරල) පයිලට්ට ඕන නම් උඩ යන්න ඒ වැඩේ කරන්න පුළුවන් ද කියලා..

 

[madurax86]

මං 12ට(ශ්‍රී ලංකා වෙලාව) උත්තරේ දෙන්නම් තව කට්ටිය try කරලා බලන්න..සාධනයත් දෙනවා නම් තමා වඩා හොද..

 

[siri24]

ඔ‍ව්‍ ප්‍ර‍ශ්නෙන් අහන්නෙ එහෙම තියෙද්දී(එන්ජින් on කරල) පයිලට්ට ඕන නම් උඩ යන්න ඒ වැඩේ කරන්න පුළුවන් ද කියලා..

මට හිතෙන විදිහ හො‍දේ..

උඩ යන්න නම් සුලග කපාගෙන යානය යන්න ඕනෙ. ඒකියන්නනෙ වාතයට සාපේක්ෂව චලනය වෙන්න‍ ඹනේ..
මෙතනදි බෙල්ට් එකට සාපේක්ෂව චලනය වුනාට වාතයට සාපේක්ෂව ප්‍රවෙගය=0 (වාතය නිෂ්චලනම්)
ඒනිසා උඩ යන්නෙ නැ කියල හිතෙනව.

 

[malithmp]

Nope, it cant take-off,
The plane should have a relative velocity to the air to take-off.
since the conveyor moves in the opposite direction, the relative velocity of the plane to the atmosphere is zero,

 

[madurax86]

15 minutes left
we need more ideas ..people!

 

[chint]

nop..
wathayata sapekshawa plane 1 chalanaya wenne na.

 

[yasitha_o3]

A plane is standing on a large treadmill or conveyor belt. The plane moves in one direction, while the conveyor moves in the opposite direction. This conveyor has a control system that tracks the plane speed and tunes the speed of the conveyor to be exactly the same (but in the opposite direction). Can the plane take off?



(conveyor belt,earth)= +v
(plane,conveyor belt)=-v
so
(plane,earth)= (-v) + (-v)
= 0
ihatha saadanayata anuwa earth ekata sapekshawa plane ekata velocity ekak naha.so plane ekata take off wenna baha.
oya reply eka dammata passe, mata reply eka pm karanna please

 

[siri24]

..plain eka belt ekata parallel natuwa poddak angle line ekaka revers ekata giyoth nam puluwan..habai oya prshne hatiyata yanna puluwanda danna...

 

[aragon]

It can take off
proof eka denna nam awankawama kamali..
Ona nam control volum ekak aran gattek
yanawyata sapekshawa bernoulli theory eka dala gattheki

 

[madurax86]

Its 12 and heres the answer : IT CAN TAKE OFF
proof from practical,
Toy plane - http://www.youtube.com/watch?v=IZGdUAiMcPs&feature=related
Mythbusters - http://www.youtube.com/watch?v=YORCk1BN7QY&feature=related

await physical proof, takes time to write

 

[aragon]

A plane is standing on a large treadmill or conveyor belt. The plane moves in one direction, while the conveyor moves in the opposite direction. This conveyor has a control system that tracks the plane speed and tunes the speed of the conveyor to be exactly the same (but in the opposite direction). Can the plane take off?



(conveyor belt,earth)= +v
(plane,conveyor belt)=-v
so
(plane,earth)= (-v) + (-v)
= 0
ihatha saadanayata anuwa earth ekata sapekshawa plane ekata velocity ekak naha.so plane ekata take off wenna baha.
oya reply eka dammata passe, mata reply eka pm karanna please

Polawata sapaksha prawegayak na thama machan..Eth bernoulli theory eka appy karanne polawata sapekshawa newi...

 

[madurax86]

A-Air Plane
W-Wind
E-Earth
(horizontally) ->
v(A,E)=v(A,W)+v(W,E)

and if the plane is stationary on the ground because of the effect of conveyor belt going the other way,
v(A,E)=0
if the plane is moving v(A,E) is not 0
(i think most of the people took earth and wind as the same thing, its not)
so v(A,W) cant be zero other than in the case of v(A,E) = v(W,E)...IF that does not happen
v(A,W) is not 0 so
there is wind blowing relative to the plane's wings...there for it'll lift off(Bernoulii's theorem)

 

[KeBa]

A-Air Plane
W-Wind
E-Earth
(horizontally) ->
v(A,E)=v(A,W)+v(W,E)

and if the plane is stationary on the ground because of the effect of conveyor belt going the other way,
v(A,E)=0
if the plane is moving v(A,E) is not 0
(i think most of the people took earth and wind as the same thing, its not)
so v(A,W) cant be zero other than in the case of v(A,E) = v(W,E)...IF that does not happen
v(A,W) is not 0 so
there is wind blowing relative to the plane's wings...there for it'll lift off(Bernoulii's theorem)

 

[barry trotter]

it won't move
since resulatant force/velocity is 0

 

[madurax86]

why?

 

[madurax86]

it won't move
since resulatant force/velocity is 0