Question: A student standing on the ground throws a ball straight up. The ball leaves the students hand with a speed of 15 m/s when the

A student standing on the ground throws a ball straight up. The ball leaves the student’s hand with a speed of 15 m/s when the hand is 2.0 m above the ground. How long is the ball in the air before it hits the ground? (The student moves her hand out of the way.)

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