The first time that the simulation runs by pressing the Start button, default values are used for the various system parameters.
Select v(x) Graph or a(x) Graph, to view the graphic representations of the various phases of the movement.
Select Forces to view the diagram of the free body of the vehicle in the various phases of the movement.
The button Pause/Continue allows you to stop and advance the simulation.
The Reset button returns the system parameter values to the situation at the outset.