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Question

Identify the correct statement:


A
For a body in motion, average speed can be zero but average velocity can not be zero
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B
For a body in motion, average velocity can be zero but average speed can not be zero
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C
For a body in motion, both average velocity and average speed can be zero
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D
For a body in motion, both average velocity and average speed can not be zero
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Solution

The correct option is B For a body in motion, average velocity can be zero but average speed can not be zero
Average Velocity = $$\dfrac{Total\,displacement}{Total\,time}$$

and Average Speed = $$\dfrac{Total\,distance}{Total\,time}$$
For a moving body, total displacement can be zero but total distance can never be zero.
So, Average Velocity can be zero but Average Speed can never be zero.

Physics

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