When I was in school, I never really thought math would be useful to me. I mean, sure, basic math skills, fine. I use them all the time when I'm buying stuff and building my Armaggedon Machines. But I have as yet found no useful reason to bother with cosines or derivatives. Bah. I mean, I'm not ruling out the possibility that I (subconsciously or otherwise) avoid situations where that might come up, but still. Bah.
But here's my dillemma. And really, it's more of a physics dillemma than a strictly math one, but it's all the same language, verdad?
Anyway, here's the thing. I'm in the elevator at work, alone, so it occurs to me that I might want to jump up and down. Sort of relive that freefall thing I did when I was a kid. The thing is, I'm much bigger than I was when I was a kid. And I see on the little brass plaque on the elevator wall that maximum holding capacity is a paltry 2500 pounds. So you see my problem. My being in the elevator is no issue. But would the force of impact from my leaps of fun be enough to rip my iron cage from it's moorings and send me plummeting down to the waiting arms of death and/or dismemberment?
As I am not a physics genius, I couldn't say. Shameful. My own ignorance had shackled me. I hate that.
So, as a matter of pride, I took a little 4-inch jump. It wasn't very fun, but the elevator did bang noisily against the walls of the containing shaft, so that was exciting. I got a (slightly nervous) traveling companion on the next floor, though, so the fun was over.
I did do some research later and found that I would have to jump to a height of .8 meters to produce the appropriate number of Newtons to snap the cable. But I'd hit my head on the ceiling way before I got that high. Not that I couldn't do it if I had the headroom, mind you. I have the thighs of a retired soccer player.
Leaping Mastery. Yes sir. Maybe I'll teach a class.