If a body is moving on a circular path, what is its average velocity if it completes one cycle in one second? A) Average velocity depends upon time taken to complete one cycle B) One C) Average velocity is same as average speed D) Zero

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A: !!

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A: solution is given as

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!