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9th Class Science Force and laws of motion Question Bank Force and Laws of Motion

  • question_answer
    Rahul is travelling in a bus moving at a constant speed of \[50\text{ }km\text{ }{{h}^{-1}}\]. At one point of his journey, he throws a ball vertically upwards to a height 40 cm, the ball will fall (Neglect air friction)

    A) A short distance behind where he is standing

    B)        A long distance in front of where he is standing

    C)        A long distance behind where he is standing

    D)        At the same spot where he is standing.

    Correct Answer: D

    Solution :

    When Rahul is standing on the bus, he is moving in the same direction with the same speed as the bus. There are no forces acting on the ball in the direction of the motion of the bus to change its motion.


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