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Railways NTPC (Technical Ability) Engineering Mechanics and Strength of Materials Question Bank Engineering Mechanics

  • question_answer
    A train of weight 5000 kN is pulled on a level track with a constant speed of 10 m/s. The frictional force is 75 kN. The power of the engine is:

    A) 375 kW            

    B) 750 kW

    C) 1875 kW                       

    D) 3000 kW

    Correct Answer: B

    Solution :

    Power of engine \[75\times 10=750\,\,kW\]


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