Question

a stone is dropped from the rooftop of a building 60.0 m high.how many seconds does the stone take reach the ground?

Answer 1

Solve
H = (1/2) g t^2 for the time, t.

t = sqrt(2H/g)

H = 60 m
g = 9.8 m/s^2
t = ?

Answer 2

48.02