Question

NEED ASAP PLEASE !!

Billy drops a water balloon from the roof of his house. Since the balloon began with an original velocity of zero, how far above ground was the balloon dropped if it took 2.5 seconds to hit the ground?

A. 30.6 m
B. 122.5 m
C. 12.3 m
D. 49.0 m

Answer 1

The formula you want is:

Distance = (1/2) (gravity) (time)²

= (1/2) (9.8 m/s²) (2.5 sec)²

= (4.9 m/s²) (6.25 sec²)

= 30.6 meters