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

  • question_answer
    When a bus starts suddenly, the passengers are pushed backwards. Which of the following laws is illustrated in this example?

    A)  Newton's first law  

    B)  Newton's second law

    C)  Newton's third law

    D)  None of Newton's laws

    Correct Answer: A

    Solution :

     As the lower part of the body of the passenger (which is in contact with the bus) comes in motion; but because of inertia, the upper part tends to be at rest. Hence, the passengers fall backwards. Newton's first law of motion is also called as law of inertia.


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