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May 18, 2012
cheerdiver Says:
Most riders use the rear tire, as it weighs more, having more effect. The rear brake is actuated by the right foot, on most. And, yes, using the clutch will help prevent the engine from stalling.
May 15, 2012
im18iswear1000 Says:
destin could you do a vid on the physics of boats?
May 10, 2012
swiss93boy Says:
"you tap your brakes" and points on the clutch xD
May 8, 2012
Basiliskeye Says:
When he revs the throttle, the rider uses the bike's engine to transform chemical energy (Petroleum) into heat and rotational kinetic energy, spinning the tire faster. This spin is transfered to the bike, rotating it backwards again. Thats my best try at decribing it anyways...
Apr 28, 2012
CryoInferno Says:
You have inspired me to take up physics again.... got any recommendation books-wise for self learning?
Apr 24, 2012
oxleymx238 Says:
so if your air wheelying do you press the fornt brake to get it back level? Or he back brake? If using the back brake do you need to use the clutch ? Thanks
Apr 18, 2012
BubbaWatsonfan15 Says:
Same with remote controlled cars. You can fly the car in the air pretty much. Front end is high = tap brakes and vice versa. Same prinicple applies. Very cool tho. Thanks for the upload
Mar 21, 2012
alexchasewilliams Says:
@destinws2 Discovered your channel today, really enjoying the videos. Keep it up.
Mar 21, 2012
destinws2 Says:
You are absolutely correct. I should have been more specific.
Mar 21, 2012
alexchasewilliams Says:
Could you explain how rotational energy is conserved? Pretty sure that tapping the brakes is converting some of that rotational energy into heat.
Mar 13, 2012
MrRoyalestCrown Says:
Thank you for taking the time out of your day to make sure I understand. Happy Physics-ing!
Mar 12, 2012
zuke1624 Says:
Not entirely accurate. These principles would still be in effect even in a vacuum. The reason the bike will pitch down is because of the momentum of the wheels. Both wheels have rotational velocity (rotational momentum) when he leaves the ramp. Now, if you slam on the front brake and that momentum doesn't just disappear, it transfers into something else. In this case it's transferring into the fork of the bike.
Mar 5, 2012
mx4life757 Says:
omg ur so smart u pointed at the clutch
Mar 1, 2012
MrRoyalestCrown Says:
Newton's Third Law. As the wheel spins faster, it tilts the bike's nose up because the rotation of the wheel increasing the air pressure on top of the wheel, forcing the back wheel down. When applying the brakes, the wheel is still and generates air pressure on the bottom of the wheel to tilt the nose down. Off of the top of my head ( I am a sophomore in highschool, 11th year).
Feb 14, 2012
Infernostar18 Says:
torque!!! the motor generated torque in the opposite direction, thus causing it to rotate the other way.
Jan 23, 2012
Beesem Says:
I'm a hearing instrument specialist. I'm so glad to see you say that! You're doing your future self a huge favour!
Jan 18, 2012
Gilmore2100 Says:
cool video man I think I learned a lot.
Jan 17, 2012
MrZombiekiller23 Says:
smart rednecks
Jan 16, 2012
shortsting24 Says:
whats the outro song?!?!?!?! awesome vid btw #ThumbsUp
Jan 9, 2012
The1PublicEnemy Says:
as an mx rider i love this vid :D
Jan 7, 2012
tomdkkr Says:
backbrake on the bike is near the right foot:P 1:25
Jan 6, 2012
infinite5150 Says:
hey man your videos are awesome! mabie sometime you could one of my beats on your video?? :) btw i always thought Dirtbikers just shifted their weight to move the bike in the air. its pretty nuts
Dec 29, 2011
ringer454 Says:
Basically, yeah..
Dec 29, 2011
zachawesomepudding Says:
to make it simpler the wheel needs something to push off of and the bike is the pivot and wheel uses the pivot and the energy from the wheel is great enough to spin the wheel at the max rpm and then extra rotation and energy to spin the bike

Video Details

This is most often described in terms of angular momentum. I decided to use the rotational energy approach. I'm shooting with a high speed camera made by Vision Research. http://www.visionresearch.com/Contact-Us/Cont
act-Form/ - Click here to contact them with inquiries and tell them I sent ... More

destinws2

Added Nov 7, 2011  

Channel Education

Duration 3:37   |   views 73418

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Youtube Comments 253

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