Answer:
A. 3s
Step-by-step explanation:
The height of the object after t seconds is given by:

When will the object hit the ground?
It hits the ground after t seconds, and t is found when
. So







3 seconds, so the correct answer is given by option a.
In this situation you will need to do 8 divided by 25 which will give the answer 0.32.
The answer is 6. Hopefully this helped!!