9th Class Science Time and Motion Question Bank Motion

  • question_answer
    How do the directions of velocity and acceleration act when brakes are applied to a moving cycle?

    A)  Opposite to each other  

    B)  In the same direction

    C)  Perpendicular to each other

    D)  Parallel to each other

    Correct Answer: A

    Solution :

     When brakes are applied to a moving bicycle, its velocity starts decreasing while it moves in the same direction, i.e., it undergoes retardation. This indicates that its acceleration is in a direction opposite to that of its velocity.


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