Question: You throw a ball upward with an initial speed of 4.5 m/s. When it returns to your hand 0.92 s later, it has the same

You throw a ball upward with an initial speed of 4.5 m/s. When it returns to your hand 0.92 s later, it has the same speed in the downward direction (assuming air resistance can be ignored). What was the average acceleration vector of the ball?

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