When objects such as cannon balls or missiles are fired into the air they are called projectiles. When moving through the air, the following are all examples of projectiles:
The path that a projectiles takes is knows as its trajectory. If a projectile is launched horizontally on Earth, and there is no air resistance acting on it, the porjectile will have:
-a constant horizontal velocity
-a steadily increasing vertical velocity.
The horizontal and vertical velocities are vectors. If air resistance is ignored, the only force acting on the…