Multiple Choice
A 10-kg rock and 20-kg rock are dropped from the same height and there is no air.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) 4T
B) 2T
C) T
D) T/2
E) T/4
Correct Answer:
Verified
Correct Answer:
Verified
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