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    Question

    Which physical quantity remains constant during uniform

    circular motion?  
    A Velocity Correct Answer Incorrect Answer
    B Speed Correct Answer Incorrect Answer
    C Acceleration Correct Answer Incorrect Answer
    D Displacement Correct Answer Incorrect Answer

    Solution

    In uniform circular motion, only speed remains constant.   Velocity changes due to continuous change in direction.   Centripetal acceleration keeps the object moving in a circle.   Examples: Ferris wheel, satellites in orbit.

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