Multiple Choice
A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 20-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground?
A) 
B) 
C) 
D) 
E) 
Correct Answer:
Verified
Correct Answer:
Verified
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