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.
Answer:
$317.20
Step-by-step explanation:
hope this is right and hope it helps:D
Answer:
this answer is. _48 am I right