A puck moves 2.35 m/s in a -22.0° direction. A hockey stick pushes it for 0.215s, changing it's velocity to 6.42 m/s in a 50.0° direction. What is ∆x?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.