What is the biggest threat to infrastructure in eastern asia?
a. lack of use
b. poor maintence
c. poor tax structure
d. lack of adequate fees and tolls

The correct answer is B, "Poor Maintenance."

we can solve this via the kinematic equation:

where the vertical velocity is zero and so:

since the height of the building is 29.3 meters then:

the ball was in motion for approximately 2.45 seconds

i need more info !