How Does Physics Apply to a Jumping Spinning Crescent Kick in Martial Arts?

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The discussion focuses on applying physics concepts to the jumping spinning crescent kick in martial arts. Key topics include inertia, angular momentum, and the mechanics of energy required for achieving height during the kick. Participants suggest exploring how momentum is gathered during the approach to enhance the kick's effectiveness. The conversation emphasizes breaking down the physics behind each phase of the kick for a comprehensive project. Understanding these principles can deepen the appreciation of martial arts techniques.
Ninjabuddy
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Hey guys, I've just started my first year of Physics in High School and so far, it's really interesting! Great too see just how everything around us actually works!

Anyway, I've got a question for everyone. To introduce us to Physics and better acquaint ourselves with the world, our teacher is making us do a project on the physics of our favorite hobby, and my favorite hobby just happens to be Martial Arts, so I decided to do the physics of a certain type of kick called a jumping spinning crescent kick. If any of you do martial arts, you should know what the kick looks like, and if you don't, here's a tutorial of it.

http://www.trickstutorials.com/index.php?page=content/t_360

Any help you guys could give me would be greatly appreciated!
 
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Well the first thing that strikes me is inertia and angular momentum. And a kind of projectile orbit.
 
Hey,

You could do something based in basic mechanics, e.g. how much energy is required for a human of a said mass to get high enough to get a kick in. I dunno, just throwing really random ideas at you to be honest. I also thought of angular momentum when I was reading your post but not inertia; I like it. :biggrin:

The Bob (2004 ©)
 
Thanks for the help and some really interesting ideas. I should have been a bit more clear in my first post about what exactly I was looking for. I was thinking of doing the basic physics behind each step in the kick, such as gathering momentum as you step into get a higher launch or something to that effect.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .

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