This is one of a set of applets designed to be a problem posing playground for teachers.[br][br]The left hand panel shows the trajectory in space traced out by a moving[br]object. The right hand panel shows the horizontal and vertical motions[br]of that object as functions of time.[br][br]The user can control - [br] - the number of intervals during which the object moves with constant speed (links)[br] - the times at which the speed of the object may change (black dots)[br] - the horizontal position of the object at those instants of time (lower right hand panel)[br] - the vertical position of the object at those instants of time (upper right hand panel)[br][br][b][i][color=#ff0000]What problems could/would you set for your students based on this applet?[/color][/i][/b]