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Tue 7 Sep, 2004 03:37 pm
Joe weighs 100 lbs. he has two full grocery bags each weighing 50 lbs. he needs to cross a bridge that can only hold 150 lbs. He can't throw the groceries and he cant swim across. what can he do?
he makes 2 trips. you must be forgetting something
he can only go across once
does he need to get ALL the groceries across ?
could he, for example, camp out, eat one bag of groceries, then cross ?
what gabone builds a bridge that can only hold 150 lb/ what if we had to get a couch across/
how is this algebra-related ?
jumpin' joe, you there ?
its not algebra related and he can't camp out. the Teacher claims its an obvious answer. i can't figure it out
if we juggle the problem in our minds the answer presents itself
You mean like the guy smuggling a ton of canaries in a 1/2 ton pickup, farmerman?
That won't work. The force on the bridge will exceed 150 pounds when he throws a bag in the air.
Well, the smuggler would stop periodically and whack the side of the camper shell with a stick, markr. He had to keep at least half the birds in the air at all times. I don't know where the weight went, but he worked the hustle for years.
Doesn't work with birds either.
Quote:Doesn't work with birds either.
It can, you just have to design the van correctly.
And that design would be... (roger?)
You could design the van like an airplane, but then you wouldn't have to worry about keeping the birds aloft.
The cargo area needs to be open to the air. The volume needs to be such that the birds can actually fly. It's possible, but you can't guarantee that it would work every time.
Can you explain why opening the cargo area makes a difference? Wouldn't any vertical forces required to keep the birds aloft still be vertical?
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