A particle moves on a circular path of radius 'r'. It completes one revolution in 40s. Calculate distances displacement in 2 min 20 s.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Convert the time from minutes and seconds to seconds.
The total time given is 2 minutes and 20 seconds.
- Convert 2 minutes to seconds:
\[ 2 \text{ minutes} = 2 \times 60 = 120 \text{ seconds} \]
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