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

An astronaut stands by a crater on the moon, where the acceleration of gravity is 1.62 m/s2 and there is no air. She drops a rock and it takes 6.3s for it to hit the bottom.

a) what is the depth of the crater?

b) What is its speed when it hits the bottom?

Please include all steps and work

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