This is a simulation done from scratch after attending a crash course on EJSS. It displays the velocity and acceleration vectors as an object is projected vertically upward with a uniform downward acceleration. The initial upward velocity can be altered using a slider. The graph of velocity is traced as the ball moves.
https://physicslens.com/ejss/verticalthrow_Simulation.xhtml
Why can we not put in a negative number? 🙁