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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    Which is constant, the earth revolving around the sun?

    A)  Angular momentum

    B)  Linear momentum

    C)  Rotational kinetic energy        

    D)  Kinetic energy

    Correct Answer: A

    Solution :

     Kepler's second law \[\frac{dA}{dt}=\frac{L}{2m}\] \[\frac{dA}{dt}=\]constant \[L=\]constant


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