A particle travels in a circle of radius 20 cm at a speed thast uniformly increases. If the speed changes from 5.0 m/s to 6.0 m/s in 2.0s, find the angular aceleration.

Explanation

To find the angular acceleration of a particle moving in a circle with a radius of 20 cm, where its speed increases from 5.0 m/s to 6.0 m/s in 2.0 seconds, we can follow these steps:

### Step 1: Convert the radius from centimeters to meters.
The radius \( R \) is given as 20 cm. To convert this to meters:
\[ R = 20 \text{ cm} = 20 \div 100 = 0.2 \text{ m} \]

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