we had the following test question last week in my physics class: A rocket is launched at an angle of 7.5 degrees and reaches a maximum height of H. To make the rocket reach 2*H what needs to be done. a) double the launch angle and initial velocity b) half the range there were two other options but i can't remember them. The only hint he would give us (after the test of course ) was that we had to find a general solution. ONLY ONE PERSON GOT THE ANSWER RIGHT AND HE GUESSED IT.the test was multiple choice of course. Any ideas ?