- #1

Bob Rudd

- 2

- 0

## Homework Statement

http://imgur.com/0t8TVgq

http://imgur.com/0t8TVgq

[Image copy inserted by moderator]

Sorry about all the erase marks. My question is why is the final velocity not 0.

## Homework Equations

V=Vo+at[/B]

## The Attempt at a Solution

So the question is asking for the horizontal distance the ball travels before it hits the floor. First to solve this I decided to solve for time. To do this is used V=Vo+ at which I rearranged to t=(V-Vo)/a. Using just the vertical component, I decided the vertical velocity of the ball when it reaches the floor is 0. So I did (0-1)/-9.8 which gave me a time of .102. The book solved for the final distance first and then solved for time

My question is why is the final velocity no just 0. When it reaches the floor it can't have a positive velocity because it has stopped moving.