let speed of 0.284 kg puck = v
then
0.248 x 3.03 = 0.248 x 2.03 x cos23 + 0.284 x v x cos(theta)
v cos(theta) = 1.01416 m/s
also
0.284 vsin(theta) = 0.248 x 2.03 sin23
vsin(theta) = 0.69264 m/s
now v2 cos2(theta) + v2sin2(theta) = v2 = 1.014162 + 0.692642
v = 1.228 m/s
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