Multiple Choice
A hammer is accidentally dropped from rest down a vertical mine shaft. How long does it take for the rock to reach a depth of 79 m? Neglect air resistance.
A) 2.8 s
B) 9.0 s
C) 8.0 s
D) 4.9 s
E) 4.0 s
Correct Answer:
Verified
Correct Answer:
Verified
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