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 depth of the crater is 120 m,how long does it take for the rock to fall to the bottom of the crater? A)3.04 s B)12.2 s C)29.3 s D)32.1 s E)37.5 s

Question

Quizplus · Accepted Answer

The time it takes for an object to fall a certain distance is given by the formula:
t = √(2d/g)
where d is the distance and g is the acceleration due to gravity.
Plugging in the given values, we get:
t = √(2(120)/1.62) ≈ 12.2 s
Therefore, the answer is B.

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