Mathematics, 12.04.2021 18:40 hannahbannana98

A baseball player hits a baseball into the air with an initial vertical velocity of 78 feet per second. The player is 6 feet tall, and the height of the ball when hit is half his height. At what two different times does the baseball have a height of 84 feet above the ground? Do not round your answer. (Hint: -54 is a helpful number)

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A baseball player hits a baseball into the air with an initial vertical velocity of 78 feet per seco...