Kinematics Question 790

Question: An object is moving in a circle of radius 100 m with a constant speed of 31.4 m/s. What is it’s 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 31.4m/s $

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Answer:

Correct Answer: B

Solution:

As the speed is constant throughout the circular motion therefore it’s average speed is equal to instantaneous speed.



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