SOLUTION: A model rocket is launched with and intitial velocity of 120 feet per second from a height of 20 feet. The height of the rocket t seconds after it has been launched is given by the

Question 1008914: A model rocket is launched with and intitial velocity of 120 feet per second from a height of 20 feet. The height of the rocket t seconds after it has been launched is given by the function
s(t)=-16t^2+120t+20
question
A) After how many seconds will the rocket reach its maximum height?
B)What will be the maximum height of the rocket?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
When the equation has the form
, the
x-coordinate of the maximum is at

--------------
(A)

sec
(B)

The maximum height is 245 ft
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