SOLUTION: please help me answer this question: a flare is launched from a life raft with an initial velocity of 80 meters per second. how many seconds will it take for the flare to return t

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 Question 357043: please help me answer this question: a flare is launched from a life raft with an initial velocity of 80 meters per second. how many seconds will it take for the flare to return the sea?Answer by stanbon(57282)   (Show Source): You can put this solution on YOUR website!a flare is launched from a life raft with an initial velocity of 80 meters per second. how many seconds will it take for the flare to return the sea? -------------- h(t) = -9.8t^2 + 80t ---- When the flare is at sea level, it height is zero. --- Solve -9.8t^2+80t = 0 t(-9.8t+80) = 0 t= 0 when the flare leaves the raft. -9.8t+80 = 0 when the flare hits the water. 9.8t = 80 t = 8.16 seconds ========================== Cheers, Stan H.