PLEASE HELP THIS IS A TEST QUESTION!! The average amateur golfer can hit a ball with an initial upward velocity of 28.3 meters per second. The height can be modeled by the equation h=-4.9t^2+29.7t, where h is the height of the ball, in meters, after t seconds. At what height is the ball hit? When is the ball at it's maximum height? What is the maximum height of the ball? How long did it take for the ball to hit the ground?