# A driver in a car traveling at a speed of 21.8 m/s sees a car 101 m away on the road. How long will it take for the car to uniformly decelerate to a complete stop in exactly 99 m?

##### 1 Answer

Apr 5, 2018

#### Explanation:

Since we know that velocity is uniformly decelerating, we can take the average velocity:

Letting

Now we know

Substitute our velocity of 10.9m/s for V and 99m for d:

Finally we get

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