An Astronaut Stands by the Rim of a Crater on the Moon

Multiple Choice

An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s². To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the time is 6.3 s, what is the depth of the crater?

A) 10 m
B) 14 m
C) 26 m
D) 32 m
E) 38 m