For a projectile fired on level ground, the maximum range occurs when the launch angle is 45 degrees. What if the projectile lands at a level higher than its launch position? What launch angle, measured from the horizontal, maximizes the range? Note that the speed of the projectile is the same for all cases.

1. 45 degrees
2. an angle larger than 45 degrees
3. an angle smaller than 45 degrees
4. not enough information is given