The height at time t is
h(t) = 144 - 16t²
When t = 0, then h = 144.
Therefore the height from the ground is 144 when the object is dropped.
When the object reaches the ground, h = 0.
Therefore
144 - 16t² = 0
t² = 144/16 = 9
t = 3 s
Answer:
The object reaches the ground in 3 seconds.
I believe it's B.
If I'm wrong tell me so I can see what I did wrong.
Answer:
Letter c po sorry nasa daan po kasi ako kaya di po ako makakapag explain
Step-by-step explanation:
Sorry po talaga pero sigurado po ako sa sagot ko
Answer:

Step-by-step explanation:
a = 3, b = 5, c = 1
plug into quadratic formula