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# Graphing Initial Downward Velocity

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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 descends 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 acceleration graph for this motion.

##### Solution Summary

The expert graphs the initial downward velocity. The acceleration graph for the motion is sketched.

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