- #1
NoahCygnus
- 96
- 2
Homework Statement
"A body 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 the ground ?"
Homework Equations
## S = ut - \frac{1}{2}gt^2##
The Attempt at a Solution
Displacement in the first second;
## -x = 0 - \frac{1}{2}gt^2##
##x = 4.9 m##
Displacement during last second;
## 7x \longrightarrow 7(4.9) \approx 35 m##
That's all I could do. I don't know the distance covered between first second and last second , so I don't know how to utilise the current information I've to find the time .