Motocross Physics with Ryan Sipes - Smarter Every Day 30

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Published on Nov 6, 2011 by

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/Contact-Form/ - Click here to contact them with inquiries and tell them I sent you! That will be fun.

Check us out on Facebook: http://on.fb.me/SED-Facebook
A big thanks to Ryan Sipes - Motocross Superstar

The custom music was created by "A Shell In The Pit".
Support the artist by going and downloading this and many more of his songs.
The name of the song is "Sike"
http://ashellinthepit.com/
Download some of his music to jam to here:
http://ashellinthepit.bandcamp.com/

Jumpers: Ryan Sipes, Pooh Sipes, Ben Linderman, and others

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Uploader Comments (destinws2)

  • I just got an A on my physics project doing an analysis of the physics of motocross! I showed three aspects projectile motion, effective turning, and...... rotational energy! I showed your video to my class and you have some more fans coming your way. Everyone is impressed on how simple you explained rotational energy as well as your sense of humor! I enjoy all of your videos man, keep it up!

  • @kickingpaper

    Well done! I'm glad you were able to get aout a pencil and paper and make the math happen! Good job man.

  • The equations mean nothing if you don't explain what the variables mean!

  • @georgepowell

    Engage your brain and seek out the answers.

see all

All Comments (240)

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  • omg ur so smart u pointed at the clutch

  • 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).

  • torque!!! the motor generated torque in the opposite direction, thus causing it to rotate the other way.

  • Jus to be a smart ass but didnt you point at the clutch when u said brakes :)

  • @destinws2 I'm a hearing instrument specialist. I'm so glad to see you say that! You're doing your future self a huge favour!

  • cool video man I think I learned a lot. 

  • smart rednecks

  • whats the outro song?!?!?!?!

    awesome vid btw #ThumbsUp

  • as an mx rider i love this vid :D

  • backbrake on the bike is near the right foot:P 1:25

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