Reset the velocity to 18 m/s and change the canon base height from 0 m to 15 m above the ground. Fire several pumpkins while varying the angle. Question-14: For what angle is the range the greatest? Question-15: Explain what happens when you change the height from which you launch a projectile? Question-16: If a light mass and a heavy mass are launched at the same angle with same velocity, which mass will reach the ground first? Set the launch angle to 45° and click on the "air resistance" Set the drag coefficient to 0.47. Question-17: How did air resistance affect the range