Quote:
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Originally Posted by sanddrag
the runway exerts no force whatsoever on the airplane. Yet the airplane is exerting tremedous force on the air.
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Hmm.. well.. LIke I said before, I suck at the math and equations behind physics.. but if I recall correctly we have a minimum of 4 forces at work here. (horray for using force digrams in Physics class over and over again
)
Fn - Force of Conveyer pushing up at the plane (+Y) (the force comes from the contact of the conveyor to the plane's wheels) and it it is a staple in every force equation which you have apparently forgot about and left out. Also known as Normal Force.
Fg - Force by gravity holding the plane down (-Y) on the conveyer
Ft - For this case, thrust of airplanes jets going in the reverse direction (+X) of:
Fcb - Force being countered by the conveyer belt (via really wicked cool sensors - which I would like to see in the kit next year
) in the equal and opposite direction of the airplane's thrust. (-X)
So.. in this equation.. and using Newton's third law, which states "For every action, there is an equal and opposite reaction."
Fn +
-Fg = 0 = no movement in Y direction
Ft +
-Fcb = 0 = no movement in X direction
Care to tell me what I am missing and how this hypothetical plane lifts?
The only thing I can think if is since I am not an aerospace engineer, or a hyphothetical physicist (or even a real one), is the combination to add positive force to both
Ft and
Fn to make the plane raise up which may come from the wings and their relation to the non linear movement of the airplane???
Quote:
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Originally Posted by sanddrag
The airplane will proceed to move forward and take off. You really need to analyze what forces are being applied where and then you'll "get it."
Are you guys just being stupid to make this thread go on forever or do you really still not "get it"?
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Is that enough analyzing?
Did I miss something? If I did, I guess I am stupid or rather just uninformed.
Care to inform me?
Oh, and please refain from using words such as stupid on these forums. We're all here to learn and help each other, not to call each other names.. Thank you!