- #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 .