You throw a ball upward with an initial speed of 44 rm ms

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You throw a ball upward with an initial speed of 4.4 {\rm m/s}. When it returns to your hand 0.90 {\rm 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?

Reference no: EM13641889

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