A projectile is fired from the edge of a 150m cliff with an initial velocity of 180m/s at an angle of 30° to the horizontal, as shown in Figure 3. Neglecting air resistance, find:
a) The point where the projectile strikes the ground.
b) The greatest elevation above the ground reached by the projectile.
If you fire a projectile from 150m above the ground, what launch angle will give you the greatest horizontal distance? Choose one answer from the following:
a) A launch angle of 45°
b) A launch angle less than 45°
c) A launch angle greater than 45°
d) It depends on the launch velocity.