An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/. 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?

Answer;

=32.15 meters

Explanation;

Use the formula

s = ut + 0.5 a (t) ^2 to find out 's'

where s = distance traveled

u=initial velocity which is zero in this case

t = time taken to travel 's' distance

a=acceleration (due to gravity on moon i. e 1.62 m/s^2)

Therefore;

S = 0.5 * 1.62 * 6.3 * 6.3

= 32.1489 meters

Thus; the crater is 32.15 meters deep.