#### At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of .

(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.

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