Physics. Suppose you throw a ball straight up from the ground with a velocity of 112 feet per second. As the ball moves up, gravity slows it. Eventually, the ball begins to fall back to the ground. The height h of the ball after t seconds in the air is given by the equation h = -16t2 + 112t.
a. Find the height of the ball after two seconds.
b. How long will it take the ball to reach a height of 96 feet?
c. How long after you throw the ball will it return to the ground?
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