Celebrating the end of their Physics 51 exam, three students decide to
study Bernoulli's equation with their beer keg. First they pump it up
so that there are 1.03 atmospheres of pressure inside the tank at the
top (recall 1 atm =
N/m
). Then one punches a small
(Hint: Toricelli's Law) hole near the bottom of the keg,
meters below the surface of the beer, so that the beer comes out
horizontally. The other two students (A & B) lie on their backs with
their open mouths
meters below the hole and
meters and
meters (respectively) horizontally in the
direction of the stream. Note that all relevant distances are shown
on the figure (and that all distances shown are relevant!). Assume
that
gram/cc and that
m/sec
as
usual (if you want the arithmetic to come out simple).
Which student (A or B or neither) has solved the problem correctly (and is rewarded by getting the beer)? Note that the answer is completely unimportant, what matters is how you get it!