If an object is dropped from a height of 144 ft, the function h of t equals negative 16t squared plus 144 gives the height of the object after t seconds. When will the object hit the ground?
(1 point)
To find when the object will hit the ground, we need to find the time when the height of the object is 0.
Thus, we set h(t) = 0:
-16t^2 + 144 = 0
Solving for t gives:
-16t^2 = -144
t^2 = 144/16
t^2 = 9
t = ±√9
t = ±3
Since time cannot be negative, the object will hit the ground after 3 seconds.