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Mathematics 18 Online
OpenStudy (anonymous):

A ball is thrown from ground level with a velocity of 24.5 meters per second. As it starts back down to the ground, it hits a tree at a point 29.4 meters from the ground. How many seconds is the ball in the air before it hits the tree? Use h = vt – 4.9t2 in your work. A. 1 B. 2 C. 3 D. 5

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