A rocket is launched straight up into the air from the ground with an initial speed of 32/ftsec. The height of the rocket (in feet) is given by the equation =h+−16t232t, where t is the time in seconds after the launch ≥t0. Find the time(s) when the rocket is at ground level.

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
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Chapter10: Quadratic Equations
Section10.4: Solve Applications Modeled By Quadratic Equations
Problem 159E: A bullet is fired straight up from a BB gun with initial velocity 1120 feet per second at an initial...
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A rocket is launched straight up into the air from the ground with an initial speed of 32/ftsec. The height of the rocket (in feet) is given by the equation =h+−16t232t, where t is the time in seconds after the launch ≥t0. Find the time(s) when the rocket is at ground level.

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