Karate Kid

 


Mass of foot  = 3.18 kg

 

Kick without Spin

Kick with Spin

Velocity (m/s)

25.83 m/s

36.38 m/s

Acceleration (m/s2)

10.496 m/s2

14.594 m/s

Force (N)

33.38 N

41.93 N

Momentum (kg x m/s)

82.13 kg x m/s

91.32 kg x m/s

Total Work( J)

66.76 J

91.10 J























Research links:

Ballistic pendulums are actually used to measure the speed of a bullet.  I don't know if it's useful, but if so, then look here:

http://hyperphysics.phy-astr.gsu.edu/Hbase/balpen.html

http://www.google.com/products?hl=en&client=firefox-a&channel=s&rls=org.mozilla:en-US:official&q=ballistic+pendulum&um=1&ie=UTF-8&sa=X&oi=product_result_group&resnum=4&ct=title


Or, we may want to find a "Force Gauge".  If only we could find an affordable one...:



 

        


č
WoodKick2.mov
(10149k)
Steve Dickie,
May 6, 2009, 8:29 AM
č
Woodkick1.mov
(9414k)
Steve Dickie,
May 6, 2009, 8:27 AM
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