SOLUTION: Hi, I have an algebra question that states the following: (not sure where to go with this) If h = -16t^2 + 48t represents the height of a rocket, in feet, t seconds after it

Question 442619: Hi,
I have an algebra question that states the following: (not sure where to go with this)
If h = -16t^2 + 48t represents the height of a rocket, in feet, t seconds after it was fired, when will the rocket hit the ground?
It does give a hint: "The rocket is on the ground when h = 0"
So it states that the rocket will hit the ground after _______ second(s).

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
At t=0, h=0, it is on ground before firing
h=-16t^2+48
h =0 when it hits the ground after firing
-16t^2+48=0
16t(-t+3)=0
/16
t(-t+3)=0
t= 0 OR t=3
It will hit after 3 seconds

RELATED QUESTIONS
Hello, I am having trouble with the following question. 'A frog jumps straight up off... (answered by rothauserc)

A cat jumps off a chair 2ft off the ground with an initial velocity of 3ft/s. Use the... (answered by stanbon)

A volleyball is thrown straight up. The equation that describes its motion is h(t) =... (answered by Boreal)

Hi, I have an online algebra course and sometimes I find it difficult to solve equations. (answered by MathLover1)

how to graph... (answered by Alan3354)

Hi I need some help with solving this story problem I can work it up to the end but I am... (answered by jim_thompson5910)

Hello, I need help with this question. The equation is h=-16t^2+112t this makes an... (answered by ankor@dixie-net.com)

Please Help, I'm not quite sure if I answered this right or not but the question is,... (answered by Earlsdon,MathLover1)

Please help with this question. A water rocket is launched upward with an initial... (answered by Fombitz)