Saved Bookmarks
| 1. |
A body dropped from the top of tower covers a distance 9 x 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 the ground.A. 5 sB. 4 sC. 3 sD. 6 s |
|
Answer» Correct Answer - A `9x=(9)/(2)(2n-1)` .(1) `x=(1)/(2)g(1)^(2)` .(2) from (1) and (2) `n=5` |
|