#### At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s^{2}.

#### (a) How far does she travel in the next 5.00 s?

#### (b) What is her final velocity?

#### (c) Evaluate the result. Does it make sense?

**Solution:**

**Part A**

For this part, we use the formula .

**Part **B

The final velocity can be determined using the formula

### Part C

The result says that the runner starts at the rate of 9 m/s and decelerates at 2 m/s^{2}. After some time, the velocity is already negative. This does not make sense because if the velocity is negative, that means that the runner is already running backwards.