Free fall + Shooting = Possible?

2010-09-13 16:42:59

#76

Miggle: FUCK UBISOFT; +1,411|6741|FUCK UBISOFT

Finray wrote:
Did YOU miss something? The plane IS stationary relative to the ground. IE, if you were standing next to it, it would not move away from you, either direction.

Because the speed it's going, the engines are thrusting at, the wheels are then turning, would be equal to the speed of the treadmill going in the opposite direction.

Speed >
equals
Speed <

Ergo it appears stationary. Yes, the wheels are moving, but it is still technically stationary if you were to stand next to it.

were the treadmill to spin infinitely fast, and the plane to travel at 1mph, without friction the plane would travel forward.

If the engines are thrusting the plane is moving.

2010-09-13 16:48:05

#77

Finray: Hup! Dos, Tres, Cuatro; +2,629|5787|Catherine Black

2010-09-13 16:58:42

#78

Miggle: FUCK UBISOFT; +1,411|6741|FUCK UBISOFT

maybe if the plane has no wheels.

A treadmill cannot keep a thrusting plane stationary if the wheels are down.

2010-09-13 17:00:57

#79

Finray: Hup! Dos, Tres, Cuatro; +2,629|5787|Catherine Black

Miggle wrote:
A treadmill cannot keep a thrusting plane stationary if the wheels are down.

Why ever not, oh great Miggle?

Surely if the level of thrust was constant and the speed of the treadmill was constant and they were both equal, it would have no problems?

Bear in mind this is all theoretical and without outside, practical influences.

2010-09-13 17:02:37

#80

Miggle: FUCK UBISOFT; +1,411|6741|FUCK UBISOFT

Finray wrote:
Miggle wrote:
A treadmill cannot keep a thrusting plane stationary if the wheels are down.
Why ever not, oh great Miggle?

Surely if the level of thrust was constant and the speed of the treadmill was constant and they were both equal, it would have no problems?

Bear in mind this is all theoretical and without outside, practical influences.

if the level of thrust is 50mph, and the treadmill is doing 50mph, the wheels will spin at 100mph and the plane will move forward at 50mph.

https://dl.dropbox.com/u/44874/planetread.png

2010-09-13 17:15:41

#81

Finray: Hup! Dos, Tres, Cuatro; +2,629|5787|Catherine Black

FinraY: if the original question was
FinraY: if a plane
FinraY: is sitting on a treadmill
FinraY: and the treadmill is going backwards
FinraY: and the plane is providing enough thrust to keep a constant with the ground
FinraY: will it take off
FinraY: and the answer to that would be no
FinraY: if the question was
FinraY: if a plane sits on a treadmill
FinraY: and the treadmill goes 50mph backwards
FinraY: and the plane goes 50mph forwards
FinraY: then yes the plane will accelerate past the speed the treadmill pulls it back at
FinraY: and will be able to take off
FinraY: provided it's takeoff speed is <50mph
Jokerman Font: a plane keeping a constant with the ground won't take off
Jokerman Font: period
Jokerman Font: no treadmill necessary
FinraY: exactly my point

2010-09-13 17:20:54

#82

Miggle: FUCK UBISOFT; +1,411|6741|FUCK UBISOFT

8:12 PM - FinraY (2): exactly my point
8:12 PM - Jokerman Font: useless question
8:12 PM - FinraY (2): not exactly
8:12 PM - Jokerman Font: no science required
8:12 PM - FinraY (2): that's what many people think the original theory puzzle is
8:12 PM - Jokerman Font: no
8:12 PM - Jokerman Font: probably just you
8:12 PM - FinraY (2): yes
8:12 PM - FinraY (2): no not just me
8:13 PM - Jokerman Font: if anybody thinks that it's because they don't realize that the wheels are seperate from the plane's propulsion
8:13 PM - Jokerman Font: and once that is noted to them, they will easily understand