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

  • question_answer
    Two masses, each equal to m, are attached to one another by a massless string passing over a smooth pulley. The tension in the string is

    A)  \[mg\]                  

    B)         \[2m\]

    C)  \[\frac{mg}{2}\]             

    D)         Zero

    Correct Answer: A

    Solution :

     Since each mass is in equilibrium, the net force on each mass is zero, considering the free body diagram of any one of the bodies, it can be seen that\[T=mg\].


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