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Old 12-07-2006, 03:08 PM   #1
SteveDallas
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OK, let's try this one. The engine is not on at all. The plane is just sitting there. Now the treadmill/runway starts to turn, let's say at 10 MPH. What happens to the plane?
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Old 12-07-2006, 03:09 PM   #2
glatt
 
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Quote:
Originally Posted by SteveDallas
OK, let's try this one. The engine is not on at all. The plane is just sitting there. Now the treadmill/runway starts to turn, let's say at 10 MPH. What happens to the plane?
Friction or no friction?
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Old 12-07-2006, 03:09 PM   #3
Kitsune
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Quote:
Originally Posted by SteveDallas
OK, let's try this one. The engine is not on at all. The plane is just sitting there. Now the treadmill/runway starts to turn, let's say at 10 MPH. What happens to the plane?
It moves backwards because of friction. The important aspect here is that it takes very little force to overcome this friction because the wheels roll.
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Old 12-07-2006, 03:11 PM   #4
glatt
 
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In Steve's scenario, the plane moves along with the runway if there is friction, and it stays stationary if there is no friction.
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