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A ball dropped from the top of a tower c...

A ball dropped from the top of a tower covers a distance `7x` in the last second of its journey, where `x` is the distance covered in the first second. How much time does it take to reach to ground?.

A

3s

B

4s

C

5s

D

6s

Text Solution

Verified by Experts

The correct Answer is:
B
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