posted by Lizz .
1. A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/6. What was the launch angle?
2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 61.0° above the horizontal and was caught at the same level from which it was kicked, what was its initial speed? (Neglect air resistance.)