Open system, closed system.
Closed system operates vaguely like physics land. Bridge breaks.
Open system doesn't operate anything like physics land. Bridge MAY NOT break.
Physics only works perfectly in physics land. (Even then sometimes it doesn't.)
can the answer involve any noble gases?
By jobe I think you've got it! The two bags of 'groceries' were actually 100lbs of helium at atmospheric pressure. Damn you're good.
.....groceries
.... bags full of helium
.... for the low-carb diet, no doubt
teacher gave me a hint:
think of clowns and circuses
OH I GOT IT
See
WE have this guy on A2k who is a
1 great cook
2 a clown
SO
We have him cook up the groceries into a stew of about 50 lbs and he (the kid) carries this over the bridge
each bag contains 2 - 25 pound squash.
He juggles having only one in the hand at a time and the other three are in the air. When he grabs one he weights 125 pounds, and tosses it in the air. A clown can juggle 4 items with out a problem.
I think Justthefax has the answer, it would be to divide the bags contents into three or four bags, then juggle them across. Thus overcoming the extra force/weight needed to accomplish the act.
Or, as it is a rope bridge, cut a length of rope off and drag them across once on the other side.
I must respectfully disagree Try'. I think that the clue given by this teacher points quite clearly to my 'helium' answer being correct.
Circus > Clowns > Balloons > Helium > Simple
There could be more than one solution. Many times math can be solved more than one way.
