Archer in the Pickup Truck (from 2 reference frames)
In physics it is usually not safe to accept a computer simulation until after it is tested in reality. This movie is of constant velocity car with a ball bearing cannon that shoots straight up. It is a movie of real life, not a simulation. Examine it from both the inertial reference fram and the stationary reference frame. The same thing is happening, just two different points of view.
Next look at more projectile motion.