Board Thread:Questions and Answers/@comment-31181127-20190717200347/@comment-34461919-20190717235811

I'll calc the punch. KE = 1/2M*V^2

Average human hand mass = 310 grams = 0.31 KG

V = mach 50 = 17150 meters per second

KE = 1/2(0.31)*(17150)^2 = 45,588,987.5 J. which is 9-A, Small Building level

If I did this wrong, please tell me.

I'm not doing the building part because buildings can vary. a lot.