Free Fall 3D simulates the same physics as the Free Fall model but with a 3D View of the model's data.  The ball falls with constant acceleration g=-9.8 m/s2 in the z direction.  Click-dragging on the ball changes its height but leaves its velocity unchanged.  The reset button stops the animation and sets the initial conditions to y=1.8 and vy=0.  See the Free Fall model for a description of this model is implemented in Ejs.

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