# A ball acceleration and velocity vectors

1. Sep 25, 2011

### physicsgurl12

1. The problem statement, all variables and given/known data

a ball is thrown vertically upward and then comes back down. during the flight up and down the velocity and acceleration vectors are
A first in opposite directions then in the same
B always in the same direction
C first in the same then in opposite directions
D always in opposite directions-no

3. The attempt at a solution
ikm guessing a because the acceleration vector is gravity

2. Sep 25, 2011

### I like Serena

Re: A ball acceleration andvelocity vectors

You seem to be on a roll here.
Well, I'm in a good mood so I'll take this one on as well.

When the ball is going up, in which direction does the velocity vector point?
And in which direction does the gravity vector point?

After that, when the ball is going down, in which direction does the velocity vector point?
And in which direction does the gravity vector point?

3. Sep 25, 2011

### physicsgurl12

Re: A ball acceleration andvelocity vectors

so it would be A

4. Sep 25, 2011

### I like Serena

Yay!

5. Sep 25, 2011

### physicsgurl12

yay! your the best homework helper ever.