Physics puzzle: chin-ups.

[billygrippo]

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Impossible to know.

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Really?

Suppose I have an accident and my biceps are cut. Do you think I could still do a chin-up? I hope not. Ok, what if this reduced the strength of my biceps to 10 pounds maximum? 20?

Ok, when you do a chin-up, focus on your biceps. How much does it feel like you are curling? Why? (The answer to the why is basic physics.)

These are the types of things I expect people to think through before posting. If you can't be bothered to think about it, why post?

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there simply isnt enough info to make an accurate guess.