1. Given the discussion we had in class, draw the following motion graphs both x versus t and v versus t for the rst 4 seconds of an objects motion: (8) a) Starting at the origin and moving at a constant positive speed for all 4 seconds. b) Starting at a positive position and moving at a constant negative speed for all 4 seconds. c) Starting at the origin and moving at a constant positive speed for the rst 2 seconds and then stop and stand still for the next 2 seconds. d) Starting at a negative position and moving at a constant positive speed for the rst 2 seconds and then stop momentarily and start moving at a constant negative speed for the next 2 seconds