Posted by **Desperate!!!!** on Friday, February 3, 2012 at 8:37am.

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

a ball is thrown straight down from the top of a 220 feet building with an initital velocity of -22ft/s. What is the velocity of the ball after 3 seconds? What is the velocity of the ball after falling 108 feet?

2. Relevant equations

s(t) = -16t^2 + Vi(t) + si vi = initial velocity, si = initial position

3. The attempt at a solution

s(t) = -16t^2 +Vi(t) +si

= -16t^2 - 22ft/s + 200ft

V(t) = -32(t) - 22ft/s

V(3) = -96 ft/s - 22ft/s = -118 ft/s

I can seem to figure out how to determine the velocity of the ball after it has dropped 108ft.

I should be able to do this, but i'm missing something, somewhere on what should be pretty basic.

Thanks for any guidance!

## Answer this Question

## Related Questions

- Calculus - 1. The problem statement, all variables and given/known data a ball ...
- Calculus - A ball is thrown straight down from the top of a 220-foot building ...
- Physical Science - Four balls are taken to the top of a building. Ball 1 is ...
- Physics - Ball A is thrown straight down off the top of a tall building with an ...
- Math - A ball is thrown straight up from the top of a building 148 ft. tall with...
- Math: Word Problem - A ball is thrown upward from the top of a building which is...
- Physics - The problem statement, all variables and given/known data A body is ...
- Calculus - When a ball is thrown straight down from the top of a tall building, ...
- 12th Grade Calculus - When a ball is thrown straight down from the top of a tall...
- Math - A ball is thrown downward from the top of a 100-foot building with an ...

More Related Questions