Now for distance Chu’s leg traveled, we’ll assume a perfect circle.Ģ* 3.14 *. See the calculation below if you want to better understand the totals I got. Thankfully, we have this figure from the aftermath of Chu’s kick sending Yusuke through the stadium wall. Next we need to find the rotational energy. We’ve already assigned Chu a weight of 109.208 kg, but we have to subtract what we’ve already factored in with the leg.ģ.717 +. I’m going to simplify things and make Chu’s body a cylinder that’s.
Generally, cutting the number in half (As in the center of gravity) does the trick.Ĭhu’s body was spinning too, so we have to apply moment of inertia to that as well. Because Chu’s leg weight is spread out through the entire length of the leg, we need to account for that in the equation. Radius would simply be the length Chu’s leg stuck out while kicking. Instead I’ll apply a scaling law based on how much taller Chu is than the average man.ġ.171^3 = 1.606 * 68 = 109.208 kg *. Chu is a big dude obviously, so we can’t just give him an average 68 kg weight. 882 m, the length Chu’s leg stuck out for the kick.Ī leg is about 17.5% of a human’s body weight. In the YYH character heights post, I established that Chu was 1.99 m tallĢ38 / 537 =. This is why figure skaters stick their arms of legs out to slow their spinning down, or vice-versa. The further an object is away from the center axis, the greater that moment of inertia is. Whenever something spins, there’s moments of inertia. It’s best to think of this with figure skaters as an example. Where m is mass from the point of axis (Chu’s leg as he spins) and r is the radius of the turn. I’m going to try to figure this out with rotational energy.Ĭhu spins in a circle, so the moment of inertia shouldn’t be too hard to find. We should be able to find a speed from this and I think it would be impressive because obviously shoes are made of rubber 😉 With one spin, Chu drills a hole in the ring with his foot.
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