[NLSoldier]

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But if the treadmill speeds up now, is this different than someone pulling me backwards? Is the treadmill speeding up different than someone pulling me back to counter my pulling forward?

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Im pretty sure this question is the key. And im pretty sure the answer is that it is indeed different. the speeding up of the treadmill is going to affect the wheels only. Its not going to affect how hard we have to pull to move forward.

edit-yeah patrick says it better than me: [ QUOTE ]

F=ma. The conveyor imparts no force on the plane to counter thrust because the wheel bearings are frictionless. In the absence of this counter force, the plane will accelerate forward.


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