Posted by **Jay** on Sunday, November 28, 2010 at 9:25pm.

A kickball is kicked upward with an initial vertical velocity of 3.2 meters

per second. The height of the ball is given by

h=-9.8t^2 + 3.2t

where the height h is measured in feet, and the time t is measured in seconds.

After how many seconds does the ball land?

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