Question: A 1 0 - k g rock and a 2 0 - k g rock are dropped at the same time and experience no significant

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)a
B)2a
C)a4
D)4a
E)a2
A 1 0 - k g rock and a 2 0 - k g rock are dropped

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