Originally Posted by [Damnit]
the plane needs to move forward to create lift under the wings. the tires just make a safe way for the contact between plane and ground. but with a conveyer belt moving in the opposite direction at the same speed, the plane is basically sitting in one spot and wasting fuel.
when u run on a tredmill, if ur running at the same speed as the tredmill, dont u sit in one spot? DEE DEE DEE
so now explain to me how the plain gets its lift...
When you run on a treadmill, the power created is going directly from your legs / foot / shoes, which contacts the treadmill. A plane's engine does not power the wheels which are in contact with the belt.
Lets say you are running on a treadmill, you are staying in a static location even though you are using all your energy. How lets say something independant of the treadmill is going to exert some power, like someone pushing or a jetpack. If someone pushed you, will you remain in the static location? If you turned on a jetpack that drives you forward, will you stay in the same location?