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  5. Force and Pressure

8th Class Science Force and Pressure Question Bank Force and Pressure IIT JEE Objective Problems

  • question_answer
    Blake is pulling a heavy box placed on a rough surface, as shown in the given figure.
    Blake is pulling the box by applying a force against

    A)  load                                     

    B)  friction

    C)  tension in rope               

    D)  gravity of Earth

    Correct Answer: B

    Solution :

      Blake is pulling the box on a rough surface; hence, there is a friction between box and the surface. This frictional force tends to stop or oppose the motion of box. Hence, Blake is working against friction. The correct answer is B.


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