Question 1029184: According to the National Association of Rockerty, the current model rocket altitude record in the
"F Altitude" event for ages 14-18 division is 1430 meters. from this record setting altitude, the rocket is motionless as it begins its free fall descent back to the ground. using the equation, find how long it will take for the rocket to hit the ground after teaching its high point.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! According to the National Association of Rockerty, the current model rocket altitude record in the
"F Altitude" event for ages 14-18 division is 1430 meters. from this record setting altitude, the rocket is motionless as it begins its free fall descent back to the ground. using the equation, find how long it will take for the rocket to hit the ground after teaching its high point.
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You didn't spec the acceleration due to gravity.
9.8 m/sec/sec is commonly used.
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s = at^2/2 = 1430
4.9t^2 = 2860
t = sqrt(2860/4.9)
T =~ 24.16 seconds
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