If you drop a rock from 2.82 meters, how long will it take to hit the ground?

Answer 1

h = height = 2.82 m

t = time

g = acceleration of gravity = 9.8 m/s²

If there is no air resistance, you can use

h = gt² / 2 ⇒

t = √(2h/g)

Now plug in the values of h and g, and get t in seconds.