an athlete make one round around a circular track of radius 2 metre in 3 minutes.what is his velocity
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Explanation:
As per the provided information in the given question, we have :
- An athlete make one round around a circular track of radius 2 metre in 3 minutes.
We are asked to calculate his velocity.
As we know that,
- Velocity is defined as distance covered in specific direction (displacement) divided time taken.
★ Calculating displacement :
Suppose the initial position of the body is A. Here, the body covers one round of the circular track, that means it comes back to point A after covering certain distance. So, the initial position and the final position of the body is same. Henceforth, the displacement is 0.
⇒ Displacement = 0
★ Calculating time :
A/Q
⇒ Time taken = 3 minutes
⇒ Time taken = (3 × 60) seconds
⇒ Time taken = 180 seconds
★ Calculating velocity :
∴ His velocity is 0 m/s.
More Information :
- Velocity is defined as distance covered in specific direction (displacement) divided time taken.
- It is a vector quantity.
- Its SI unit is m/s.
- It is denoted by v.
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