A 1.5kg puck A slides 2.0m/s due north on a frictionless horizontal table while a 2.0kg puck B simultaneously slides 1.5m/s due east. The pucks collide, and afterward puck A moves 45∘ north of east at 1.2m/s. What are the speed and direction of puck B immediately after the collision?
a) 1.6m/s at 45∘ north of east
b) 1.2m/s at 30∘ north of east
c) 1.2m/s at 45∘ north of east
d) 0.86m/s at 45∘ north of east