Physics Two Dimensional Motion Question 340

Question: An object is moving in a circle of radius 100 m with a constant speed of 31.4 m/s. What is its average speed for one complete revolution

[DCE 2004]

Options:

A) Zero B) 31.4 m/s C) 3.14 m/s D) $ \sqrt{2}\times 31.4,,m/s $

Show Answer

Answer:

Correct Answer: B

Solution:

As the speed is constant throughout the circular motion

Therefore its average speed is equal to instantaneous speed.