Hint: You can increase the scaling bar to its maximum (1000) in case of very low initial velocities (near 1 m/sec) to see the projectile path enlarged and spread over the simulation area. In case of very high velocities (near 1000 m/sec), you can decrease the scaling bar to its lowest value (0.01) to see the projectile path inside the simulation area. You can change the animation speed bar to speed up or slow down the simulation. This will not affect the real (physical) total trip time calculated after the simulation ends.