G11 Hockey player A carries the puck on his stick and moves in the direction shown with a speed vA = 4 m/s. In passing the puck to his stationary teammate B, he launches the puck at angle α =15' (60° from horizontal) and at a speed of 8 m/s relative to himself.
• Does he hit his teammate?
• If not, at what speed should he launch the puck relative to himself (with α = 15o) in order to hit his teammate?