A block is moving in a circular path at constant speed. Which of the following statements is/are true?
I. The velocity is constant.
II. The direction of motion is constant.
III. The magnitude of velocity is constant.

II only

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I and III only

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II and III only

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I and II only

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III only

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Solution

The correct option is E III only
In a circular motion of the block, the direction of velocity is changing so it is not constant. As the direction of velocity keeps changing, the direction of motion also keeps changing but the magnitude of velocity i.e., its speed remains constant.

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