Question

is it possible that average velocity of a body is zero but average speed may not be zero??​

Answer 1

Answer:

No, because speed is a scalar quantity. This means that if you are travelling in any direction, or constantly changing direction, the average speed will be greater than zero.

However, the average velocity can be zero as velocity is a vector quantity. For example, if you were to walk at 4 mph in one direction for a minute, then walk back in the same time, your average velocity would have been zero as your position is unchanged.

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