SOLUTION: A projectile is launched from ground level with an initial velocity of v0 feet per second. Neglecting air resistance, its height in feet t seconds after launched is given by s= -16
Algebra.Com
Question 889348: A projectile is launched from ground level with an initial velocity of v0 feet per second. Neglecting air resistance, its height in feet t seconds after launched is given by s= -16t^2+v0t. Find the time(s) the projectile will (a) reach a height of 192 feet (b) return to the ground when v0=128 feet per second.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A projectile is launched from ground level with an initial velocity of v0 feet per second. Neglecting air resistance, its height in feet t seconds after launched is given by s= -16t^2+v0t. Find the time(s) the projectile will (a) reach a height of 192 feet (b) return to the ground when v0=128 feet per second.
----------
s= -16t^2+v0t
s(t) = -16t^2 + v0t
(a) reach a height of 192 feet
----
s(t) = -16t^2 + 128t = 192
-16t^2 + 128t = 192
Solve for t, it's just a quadratic.
========================
-16t^2 + 128t = 0
Even easier.
----------------
This aint rocket science.
RELATED QUESTIONS
A projectile is launched from the ground with an initial velocity of V0 feet per second.... (answered by solver91311)
A projectile is launched from the ground with an initial velocity of V0 feet per second.... (answered by lwsshak3)
A projectile is launched from ground level with an initial velocity of V0 feet per... (answered by Alan3354)
A projectile is launched from ground level with an initial velocity of v0 feet per... (answered by Boreal,ikleyn)
PROJECTILE IS LAUNCHED FROM GROUND LEVEL WITH AN INITIAL VELOCITY OF v0 FEET PER SECOND.... (answered by Alan3354)
A projectile is launched from ground level with an initial velocity of v0 feet per... (answered by math_tutor2020)
PROBLEM: HEIGHT OF A PRJECTILE:
A PROJECTILE IS LAUNCHED FROM GROUND LEVEL WITH AN... (answered by stanbon,vleith)
If a projectile is shot vertically into the air (from the ground) with an initial... (answered by Boreal)
if a projectile is shot vertically upward from the ground with an initial velocity of 150 (answered by Alan3354)