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-A Ball Is Thrown Downward with an Initial Velocity h=4.9t228t+110h = - 4.9 t ^ { 2 } - 28 t + 110

Question 200

Multiple Choice

Solve.
-A ball is thrown downward with an initial velocity of 28 meters per second from a cliff that is 110 meters high. The height of the ball is given by the quadratic equation h=4.9t228t+110h = - 4.9 t ^ { 2 } - 28 t + 110 where hh is in meters and tt is the time in seconds since the ball was thrown. Find the time it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.


A) 2.62.6 seconds
B) 2.82.8 seconds
C) 3.73.7 seconds
D) 2.72.7 seconds

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