jimbob200521
Diamond Member
- Apr 15, 2005
- 4,108
- 29
- 91
Originally posted by: smack Down
Originally posted by: jimbob200521
Originally posted by: smack Down
Originally posted by: jimbob200521
Originally posted by: smack Down
Originally posted by: jimbob200521
Originally posted by: smack Down
Originally posted by: jimbob200521
Originally posted by: smack Down
Anyone wishing to show the plane can take off or the question is invalid under the assumption that the treadmill matches the speed of the plane relative to the treadmill please just leave out any crappy analogies and write the equations for the interaction between the wheels, treadmill and plane. Then show that the force on the plane via the wheels is bounded anything else is just shows you have no idea what you are talking about.
So you believe the plane will not take off?
Ok, if so, tell me this; how does the treadmill counter the thrust that the jets/propeller provide?
My theory is simple if the plane moving forward cause the wheels to roll. Rolling the wheels backwards cause the plane to go backwards. All the thrust goes towards accelerating the wheels on the treadmill.
Theoretically, your theory is fine...if the plane were to get its movement from the wheels. But it does not. The wheels do nothing but prevent the plane from scraping on the ground. The jets push the plane forward via thrust, and when this is done, the wheels spin freely against the ground.
Anyone wishing to show the plane can take off or the question is invalid under the assumption that the treadmill matches the speed of the plane relative to the treadmill please just leave out any crappy analogies and write the equations for the interaction between the wheels, treadmill and plane. Then show that the force on the plane via the wheels is bounded anything else is just shows you have no idea what you are talking about.
Say you stand on a treadmill with roller skates on and a fvcking rocket on your back. You set the rocket off, and at the same time the treadmill moves at the speed you are. What happens? Do you move forward or stay in one spot?
Screw you're "leave stupid analogies" statement, answer that question. If you say you will stay in one spot, you do not know what thrust and force are.
Assuming the treadmill matches your speed then yes you stay in place. Like I said leave your stupid analogies at the door we all understand the question. You need equations and only equations to show you are right. Which you are not.
Your reply to my question is my case in point. I'm done.
Oh, and you never answered my question of "how does the treadmill counter the thrust that the jets/propeller provide?"
By spining the wheels backwards.
That still doesn't answer my question. How does the treadmill counter the T - H - R -U -S -T provided by the planes jets. Thrust pushes against air, not the ground.