Include vector line diagrams

4. A championship golfer uses a nine iron to chip a shot right into the cup. The golf ball is launched at a velocity of 20.0 m/s at an angle of 45 above the horizontal. a. How long did the ball stay in the air? [6] b. What maximum height did the ball reach? [3] c. How far away was the golfer from the hole when he hit the ball? [2]