- #1

B18

- 118

- 0

## Homework Statement

If a body travels half its total path in the last 1.70 s of its fall from rest, find the total time of its fall (in seconds).

## Homework Equations

Vf=Vi+at

Xf-Xi=Vit+1/2at^2

## The Attempt at a Solution

Well I can see what's going in in the problem (I think). I know that Final velocity of the first half is equal to initial velocity of the second half. I tried solving for (Xf-Xi) for the first half and second half. I used Vf1=Vi2=-9.8t+16.66

Everytime I did this all of my terms would cancel out and I'm left with 4.9t^2=0. I know that the first half of t isn't 0 seconds. I'm starting to lose my confidence on this problem.. I just don't see where else i can attack this problem

Any help would be really appreciated. Thanks so much.