Graphing

Part A: A soap bubble is given an initial velocity downward from a height of H directly above a vent.  Warm air from the vent gently applies a small constant upward force on the soap bubble.  As a result, the soap bubble descentds only to within a few centimeters of the vent before turning around.  

--For the entire motion of the soap bubble going BOTH up and down, sketch the position VS time graph and a velocity VS time graph.   NOTE:  y=0 at the vent, and upwards to be positive.


Part B:  A cart is moving back and forth on a track so that it makes a velocity graph (this is an attachment).

-- Sketch the correct acceleratino graph for this motion.