Question: You throw a baseball straight up. The drag force is proportional to v2. In terms of g, what is the y-component of the ball's acceleration

You throw a baseball straight up. The drag force is proportional to v2. In terms of g, what is the y-component of the ball's acceleration when its speed is half its terminal speed and
(a) it is moving up?
(b) It is moving back down?

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