2. Solved Papers
  3. JEE Main & Advanced

JEE Main & Advanced JEE Main Paper (Held On 9 April 2016)

  • question_answer
    A cubical block of side 30cm is moving with velocity \[2m{{s}^{-1}}\]on a smooth horizontal surface. The surface has a bump ata point O as shown in figure. The angular velocity (in rad/s) of the block immediately after it hits the bump, is :   JEE Main Online Paper (Held On 09 April 2016)

    A) 9.4                                         

    B) 6.7                

    C) 5.0                                                         

    D) 13.3

    Correct Answer: C

    Solution :

                    Using conservation of angular momentum \[mv\frac{a}{2}=\frac{2}{3}m{{a}^{2}}\omega \Rightarrow \omega =\frac{3v}{4a}=5rad/s\]                


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