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Compute the force required punch a 1.25-inch diameter hole through a 1/2 inch boilerplate. The shear stress is 42000 psi Answered




.  I come up with 2.0347 kN. I'm guessing we rounded differently.

Or perhaps because I converted to mm first?

You Brits and your logical, rational metric system. Pshaw! Personally, I measure everything in furlongs and stone.

1 firkin = 0.0001693544997216257 cubic furlong. See how simple that is?

What happens when you mix a man with too much time on his hands, a conversion table and a calculator?

You get a guy who could potentially hit the broad side of Mars with a probe, even if the original figures were metric. Just sayin'.

Ok, the question should have read: A man with a giant brain and too much time on his hands.

I'll say it, "Chuck Norris could punch it with his little finger".

If you're too busy being online to read your textbook, try www.efunda.com.

Not paying attention in class, hm?