Answer:
The height of the building is of 48.24 feet.
Step-by-step explanation:
Height after t seconds:
The height after t seconds of the coin is given by:

In which h is the height of the building.
If the coin hit the ground in exactly 1.8 seconds, how high is the building?
This means that when
. We use this to find h.




The height of the building is of 48.24 feet.