A passanger in a car moving with constant velocity V.
Ball is released by passanger and it's motion is a free fall (as seen from the passanger).
However, the trajectory seen by another observator on the ground is different.

Click Play to start the simulation. You can change the initial velocity for the moving car.

VIEW or DOWNLOAD ejs xml source
then click to translate strings for selected locale.

Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop.