A body cools down from `60%=^@C` to `55^@C` in 30 s. Using newton's law of cooling calculate the time takken by same body to cool down from `55^@C` to `50^@C`. Assume that the temperature of surrounding is `45^@C`.

Explanation

To solve the problem of a body cooling from 60°C to 55°C in 30 seconds and then from 55°C to 50°C, we will apply Newton's Law of Cooling. Here are the steps to find the time taken for the second cooling process:

### Step-by-Step Solution:

1. **Identify the Given Data:**
- Initial temperature (T1) = 60°C
- Final temperature (T2) = 55°C
- Time taken (t1) = 30 seconds
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