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momentum



i have this problem

if i am playing a quiet game of pool and i take a shot at
the six ball an hit it at around 45 degrees from the
momentum vector of the white ball ( so that the six ball is
approaching the pocket).
given that the mass of both ball is about 0.2kg
and the intial velocity of the white ball is 1 meter per
second, the final velocity of the six is around 0.5 meters
per second.

can anyone use the component (x, y) of the vectors to show
that

if the vertical component of the white ball is zero then
the sum of the vertical components is also zero.

should the horizontal components of the final momentum
equal the momentum of the intial white ball?


Vern

This posting is the position of the writer, not that of SUNY-BSC, NAU or the AAPT.