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.
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.