An object is moving in a circle of radius 100m with a constant speed of 31.4m/s. What is its average speed for one complete revolution?
Correct answer: C. 31.4m/s
- A. Zero
- B. 3.14m/s
- C. 31.4m/s
- D. √2×31.4m/s
Explanation
Option C is correct because when an object moves in a circle with constant speed, its average speed for one complete revolution is equal to the magnitude of its speed, which is 31.4m/s. This is because the speed is constant throughout the circular motion. The other options are incorrect because they do not consider the relationship between constant speed and average speed in circular motion.
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