Solve
-When an Object Is Dropped to the Ground from a Height

Multiple Choice

Solve.
-When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation $t = \sqrt { \frac { \mathrm { h } } { 4.9 } }$ , where $t$ is measured in seconds. If an object falls $122.5$ meters before it hits the ground, find the time it took for the object to fall.

A) $8 \mathrm { sec }$
B) $6 \mathrm { sec }$
C) $5 \mathrm { sec }$
D) $25 \mathrm { sec }$