Answer: 3 seconds
Step-by-step explanation:
Hi, the correct equation is d (t) = 144- 16 t²
So, to answer this question we have to analyze the information given:
When the car reaches the ground the distance, d (t) of the car from the ground is 0.
0 = 144- 16 t²
Solving for t:
16 t² =144
t²=144/16
t²= 9
t = √9
t = 3 seconds
Feel free to ask for more if needed or if you did not understand something.
