2. Questions Bank
  3. 9th Class
  4. Science
  5. Time and Motion

9th Class Science Time and Motion Question Bank MCQs - Motion

  • question_answer
    If velocity of an object decreases with time, then it is called

    A) retardation                                

    B) de-acceleration

    C) negative acceleration                  

    D) All of the above

    Correct Answer: D

    Solution :

    [d] When velocity of an object decreases with time, then it is said to be retardation or de-acceleration or negative acceleration.


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