Question

A girl is on a bridge 38.4 m high.

She throws a rock straight down at
-12.5 m/s. How long does it take the
rock to hit the ground?
(Unit = s)

Answer 1

t = 3.084 second

Step-by-step explanation:

Information:

s = 38.4 meter

v = -12.5m/s, direction is going towards gravity = 12.5m/s

`v = (s)/(t)`

`t = (s)/(v)`

`t = (38.4)/( 12.5)`

`t = 3.084`

Hope it helps. Thanks!