HRWP33p78

1. Using the distance and time, you can find the horizontal velocity (which is assumed to be constant).
2. Using the angle of impact, you can find the final vertical velocity.
3. "Running the tape backwards", you can use the usual vertical equation along with the time to get h.
4. Using the time and the final vertical velocity, you can get the initial vertical velocity (still running the tape backwards).
5. You can now get the total initial velocity and the initial angle.