A driver takes 0.20 s to apply the brakes after he sees a need for it. This is called the reaction time of the driver. If he ils driving a car at a speed of 54 km/h and the brakes cause a deceleration of `6.0 m/s^2`, find the distance travelled by the car after he sees the need to put the brakes on.

Explanation

To solve the problem, we need to find the total distance traveled by the car after the driver sees the need to apply the brakes. This total distance consists of two parts: the distance traveled during the driver's reaction time and the distance traveled while the car is decelerating.

### Step-by-Step Solution:

1. **Convert the speed from km/h to m/s**:
\[ \text{Speed} = 54 \text{ km/h} = \frac{54 \times 1000}{3600} \text{ m/s} = 15 \text{ m/s} \]
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