An astronaut stands by the rim of a crater on the Moon, where the acceleration of gravity is 1.62 m/s² and there is no air. 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) 32 m
B) 14 m
C) 38 m
D) 10 m
E) 26 m

Question

Quizplus · Accepted Answer

d = 1/2 * g * t^2 = 1/2 * 1.62 m/s^2 * (6.3 s)^2 = 32 m

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