math
posted by emfn .
A rocket is fired straight up from the ground with an initial velocity of 800 feet per second.
(a) How long does it take the rocket to reach 3200 feet?
(b) When will the rocket hit the ground?

math 
Rolando Tapia
To reach 3200 feets. 5 seconds
To ht the ground 15,20 seconds
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