SOLUTION: Please help with this question. A water rocket is launched upward with an initial velocity of 48 ft/sec. It's height h, in ft after t seconds is given by h=48t-16t^2. After how ma

Question 314421: Please help with this question.
A water rocket is launched upward with an initial velocity of 48 ft/sec. It's height h, in ft after t seconds is given by h=48t-16t^2. After how many seconds will the rocket hit the ground? Please show all work necessary to arrive to the solution.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The rocket is on the ground when .

Two solutions:
, The rocket hasn't left yet.
.
.
.

The rocket will hit the ground in 3 seconds.
RELATED QUESTIONS
A water rocket is launched upward with an initial velocity of 48 ft/sec. Its height h, in (answered by scott8148)

Solve using the five-step problem-solving process. Show all steps necessary to arrive at (answered by Alan3354)

A water rocket is launched upward with an initial velocity of 48 ft/sec. Its height h, in (answered by dabanfield)

A water rocket is launched upward with an initial velocity of 48 ft/sec. It's height h,... (answered by Fombitz)

SOLVING APPLICATIONS Assume that a water rocket is launched upward with initial velocity (answered by Boreal)

Please help me A model rocket is launched with an initial upward velocity of 45 m/s. (answered by ewatrrr,greenestamps)

Can someone please help me with this question, I just need the answer. I haven't been... (answered by jim_thompson5910)

A toy rocket is launched directly upward from the ground with an initial velocity of... (answered by josmiceli)

Help please! I'm so confused by this problem. Can you explain it step by step? if an... (answered by josmiceli)