SOLUTION: A flare is launched from a life raft with an initial upward velocity of 192 feet per second. how many seconds will it take for the flare to return to the sea? use the formula h=vt-

Question 490175: A flare is launched from a life raft with an initial upward velocity of 192 feet per second. how many seconds will it take for the flare to return to the sea? use the formula h=vt-16t^2
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Find t when h = 0 and v = 192.
Factor out .
Apply the "zero product" rule.
or
If then This the initial condition when the flare is first launched.
If then This is the time when the flare returns to the sea (height = 0)
The answer is 12 seconds.
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