The average speed of a object after completing a circle of 5m radius in 5seconds is?
Correct answer: A. 2π
- A. 2π
- B. π
- C. Zero
- D. 10π
Explanation
Average speed is defined as the ratio of total distance and total time to cover that distance. Average Speed = Total distance / Total time. The total distance covered in a circle will be calculated using the circumference of the circle. C = 2πr. C = 2π(5). C = 10π. The distance covered in a circle is 10π. The total time taken is given as 5 seconds. Avg Speed = 10π/5. Avg Speed = "2π".
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