CET Karnataka Medical CET - Karnataka Medical Solved Paper-2015

  • question_answer
    The kinetic energy of a body of mass 4 kg and momentum 6 N s will be

    A)  \[3.5J~\]          

    B)  \[5.5J~\]

    C)  \[2.5J~\]

    D)  \[4.5J~\]

    Correct Answer: D

    Solution :

    : The kinetic energy K and momentum p of a body are related as \[K=\frac{{{P}^{2}}}{2m}\]where m is the mass of the Here, \[p=6N\,s,\,m=4kg\] \[\therefore \] \[K=\frac{{{(6\,N\,s)}^{2}}}{2(4\,kg)}=4.5J\]


You need to login to perform this action.
You will be redirected in 3 sec spinner