SOLUTION: A projectile is fired vertically upward and its height s(t) in feet after t seconds is given by the function defined by s(t) = -16t^2 + 800t + 600. After how many seconds will the
Algebra.Com
Question 1088660: A projectile is fired vertically upward and its height s(t) in feet after t seconds is given by the function defined by s(t) = -16t^2 + 800t + 600. After how many seconds will the projectile be 5000 ft above the ground?
Found 3 solutions by MathLover1, stanbon, Alan3354:
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
After how many seconds will the projectile be above the ground=>
solution:
the projectile be ft above the ground after approximately seconds
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A projectile is fired vertically upward and its height s(t) in feet after t-seconds is given by the function defined by s(t) = -16t^2 + 800t + 600. After how many seconds will the projectile be 5000 ft above the ground?
-------
Solve::
-16t^2+800t + 600 = 5000
-------------
-16t^2 + 800t - 4400 = 0
----------------
t^2 - 50t + 275 = 0
----
time on the way up = 6.2917 sec or time on the way down = 43.7083 sec
-------------
Cheers,
Stan H.
-------------------
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
s(t) = -16t^2 + 800t + 600. After how many seconds will the projectile be 5000 ft above the ground?
-------------------
s(t) = -16t^2 + 800t + 600 = 5000
-16t^2 + 800t + 600 = 5000
Solve the quadratic for t.
RELATED QUESTIONS
A projectile is fired vertically upward and its height h in meters after t seconds is... (answered by Shin123)
A projectile is shot vertically upward. Its height h in feet after time t in seconds may... (answered by Fombitz)
A projectile is shot vertically upward. Its height h in feet after time t in seconds may... (answered by macston)
A projectile on Earth is fired straight upward so that its distance (in feet) above the... (answered by ewatrrr)
if a projectile is fired straight upward from the ground with an initial speed of 40 ft... (answered by ikleyn)
Please help me solve this problem, i've tried but i just can't figure it out! A... (answered by Alan3354)
A projectile is fired vertically upward from a height of 600 feet above the ground. It's (answered by solver91311)
if a projectile is shot vertically upward from the ground with an initial velocity of 150 (answered by Alan3354)
if a projectile is shot vertically upward from the ground with an initial velocity of 150 (answered by Alan3354,stanbon)