火曜日, 9月 14, 2004

I give up...

if you notice from my feeble attempt at a gmail competition below, i have struck off the first question as a gmail a/c holder answered it correctly. i then put a new question, and another gmail a/c holder answered that one correctly:

(m1 + m2)v = m1v1 + m2v2
(300)(0) = 290(-1.5) + 10(v2)
0 = -435 + 10v2
v2 = 43.5 m/s

q.e.d.

aaaaaaaaaaaaaaaaaaaaaaaaaaaaargh.

who wants one?

aku kasi free. if you have gmail already also aku kasi.

hmmmph.

:)