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05-29-2013, 11:13 PM | #1 |
Movie Star
Join Date: Feb 2011
Location: Kingsport, TN.
Moto: KLR650
Posts: 682
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I will say that the impact against the car and the movement of the bike after a verrrry realistic! It's the launch that's the big issue. Physics don't seem to be obeying the laws!
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05-31-2013, 05:04 PM | #2 |
Custom User Title
Join Date: Nov 2008
Location: Central NY
Moto: 2003 SV650S
Posts: 14,959
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I remember that conversation
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05-31-2013, 10:11 PM | #3 |
Elitist
Join Date: Nov 2008
Location: SF Bay Area
Moto: Gix 750
Posts: 11,351
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If the question is would a plane take off without its engine running, if the treadmill had brought it up to a sufficient speed? The answer is yes, since airspeed is the only thing required to generate lift. However, as soon as the plane starts to lift off the treadmill, it would glide back down, and actually fall back a bit, because the treadmill was the only thing giving it its forward momentum.
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06-01-2013, 02:49 AM | #4 | |
AMA Supersport
Join Date: Feb 2009
Posts: 4,756
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06-01-2013, 09:28 AM | #5 | |
SFL Expatriate #2
Join Date: Nov 2008
Location: Raleigh, NC
Moto: CBR1000
Posts: 2,043
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06-01-2013, 10:38 PM | #6 | |
Elitist
Join Date: Nov 2008
Location: SF Bay Area
Moto: Gix 750
Posts: 11,351
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05-30-2013, 07:46 PM | #7 | |
Bored
Join Date: Dec 2008
Location: Sumter, SC
Moto: '01 Spirit 750
Posts: 1,535
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I dunno.. it looks like he still had quite a bit of momentum before coming to a stop.. or it could just be the crappy camera.
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05-31-2013, 04:59 PM | #8 |
RIP REX
Join Date: Feb 2008
Location: Murfreesboro, TN
Moto: 2008 1125R
Posts: 7,467
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That's ninja skills right there
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06-02-2013, 12:25 AM | #9 |
AMA Supersport
Join Date: Feb 2009
Posts: 4,756
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The thrust of a jet or propeller doesn't make a plane fly, the forward motion that thrust imparts pushes the wings through the air creating lift which leads to flight. Assuming it is possible for a treadmill to move fast enough to create enough friction in the tires, wheel bearings, etc. that the thrust couldn't overcome to create forward movement then the airplane would not take off. It would have to be extremely fast since that would take a hell of a lot of speed to generate that much friction, there couldn't be enough wind to create lift without forward motion, and of course it couldn't be a VTOL aircraft.
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06-02-2013, 09:54 AM | #10 | |
restorer of the original
Join Date: Mar 2008
Location: Zionsville,PA
Moto: '93 ZR1100 &'73 Kawasaki H1 500
Posts: 1,331
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~~~~~~~~~~~~~~~~~ So did the biker do a head plant into the car or not? |
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