Thread: The "Plane on a Treadmill" Question
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Old 12-07-2006, 11:48 AM   #39
Flint
Snowflake
 
Join Date: Mar 2006
Location: Dystopia
Posts: 13,136
Quote:
Originally Posted by dar512
If I understand you, the above part of the problem set means "no forward motion" to you.
No, this part does:
Quote:
...the treadmill is made to match the forward speed of the plane, only in the opposite direction.
There aren't two different reasons for the wheels to spin. They only ever spun because the plane was trying to move forward, and the treadmill matches the forward speed, cancelling it. If the plane thrusts harder, the treadmill continues to cancel it's motion. There is no tip-over point, here. The treadmill prevents the plane from moving. The plane cannot take off from a stationary position.
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Last edited by Flint; 12-07-2006 at 11:52 AM.
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