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NTSE Sample Paper NTSE SAT Practice Test-19

  • question_answer
    A heavy truck and a car are in motion and both have same kinetic energy. Brakes are applied to produce equal retarding force. Which will navel a smaller distance before coming to rest?

    A) Car

    B) Truck

    C) Both will travel through the same distance

    D) Nothing can be decided from the given data

    Correct Answer: C

    Solution :

    [c] Kinetic energy = Work done by the retarding force or \[\frac{1}{2}\text{ }m{{v}^{2}}=\text{ }FS=F'S'\] Since F = F', S must be equal to S'.


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