Brakes are applied to a car traveling at `30" ms"^(-1)`. Its velocity is reduced to `20" ms"^(-1)` in 5 seconds. Calculate the retardation produced by the brakes. Also calculate the distance covered in those 5 seconds.

Explanation

To solve the problem step by step, we will first determine the retardation produced by the brakes and then calculate the distance covered during the braking process.

### Step 1: Identify the given values
- Initial velocity (u) = 30 m/s
- Final velocity (v) = 20 m/s
- Time (t) = 5 seconds

### Step 2: Use the formula for acceleration (or retardation)
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