Quote:
Originally Posted by neo45
Heading a soccer ball does not cause as much damage as a punch. Force equals mass times acceleration and a soccer ball does not weigh as much as a human arm
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maximum velocity of a punch by a professional heavyweight boxer = 8.9m/s or 32km/hr
maximum velocity of a kicked soccer ball by a professional player = 35.8m/s or 129km/hr (average is 108km/hr)
so yeah...if you're going to use math. use all the variables you quoted...