Multiple Choice
A 10-kg rock and a 20-kg rock are dropped at the same time and experience no significant air resistance. If the 10-kg rock falls with acceleration a , what is the acceleration of the 20-kg rock?
A) 4a
B) 2a
C) a/4
D) a/2
E) a
Correct Answer:
Verified
Correct Answer:
Verified
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