A flowerpot falls off a balcony 85m above the street how long does it take to hit the ground

It will take about 4.2 seconds

The distance a falling object falls in some amount of time is

D = 1/2 a T²

If this flowerpot falls off a balcony on Earth, then 'a' is the

acceleration of gravity on Earth, and we can write

85 m = 1/2 (9.8 m/s²) T²

Divide each side by 4.9 m/s²:

85/4.9 s² = T²

Square root each side:

T = √ (85/4.9) seconds

= 4.165 seconds.