Select a problem below to display instructions.
A.  Change initial speed to hit stationary target -- horizontal launch from a height
B.  Change initial speed to hit stationary target -- ground launch at 45
C.  Investigate effect of angle of launch on range -- ground launch
D.  Change initial speed to hit stationary target -- ground launch at arbitrary angle
E.  Change initial speed to hit stationary target -- launch from cliff at 45 angle
F.  Change angle of launch to hit target -- launch from a height
G. Change initial speed to hit moving target -- launch from a height
H.  Intercept target moving with uniform velocity -- horizontal launch from a height
I.   Accelerate target from origin to intercept projectile -- horizontal launch from a height
J.  The Brockman Challenges
K. "Unsolvable" Problems