8th Class Science Force and Pressure Question Bank Force and Pressure Formative Objective Problems

  • question_answer
    A trolley is moving at a constant speed of 2 m/s. Cole and Paul start pushing the trolley at the same time from opposite directions, as shown in the figure. Both of them are applying a force of 15 N on the trolley.
    The speed of the trolley will

    A)  remain the same  

    B)  become zero

    C)  decrease          

    D)  increase

    Correct Answer: A

    Solution :

      Cole and Paul are applying equal force on the trolley from opposite directions. This implies that no net force is acting on the trolley. Hence, the speed of the trolley will remain the same. The correct answer is A.  


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