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## Homework Statement

An object is in free fall at the surface of the Earth. In a certain 1.0 second time interval, the average velocity of the object is measured to be 2.0 m/s downward.

**What was the velocity of the object at the beginning of the 1.0 second interval?**

## Homework Equations

V

_{avg}= v

_{i}+ v

_{f}/ 2

## The Attempt at a Solution

I came across this as i am studying for my physics final.

The answer is 2.9 m/s upward.

I am not sure how to get this because i cannot think of the right equation to use to get me to the correct answer.

Any help or hints would be greatly appreciated. Thank you