A ball is thrown vertically upward with an initial speed of 12 m/s from a 60-m building by a boy who is 1.50 m tall. Assuming that the ball was released just as exactly the same height as the boy’s head, and neglecting air resistance. How long is the ball in the air? (e) Determine the ball’s velocity and position 2 s after it reached its maximum height?

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A ball is thrown vertically upward with an initial speed of 12 m/s from a 60-m building by a boy who is 1.50 m tall. Assuming that the ball was released just as exactly the same height as the boy’s head, and neglecting air resistance. How long is the ball in the air? (e) Determine the ball’s velocity and position 2 s after it reached its maximum height?
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