s Solved papers for JEE Main & Advanced Physics Rotational Motion JEE PYQ-Rotational Motion - Studyadda.com
  2. Solved Papers
  3. JEE Main & Advanced
  4. Physics
  5. Rotational Motion

JEE Main & Advanced Physics Rotational Motion JEE PYQ-Rotational Motion

  • question_answer
    A thin smooth rod of length L and mass M is rotating freely with angular speed\[{{\omega }_{0}}\]about an axis perpendicular to the rod and passing through its center. Two beads of mass m and negligible size are at the center of the rod initially. The beads are free to slide along the rod. The angular speed of the system , when the beads reach the opposite ends of the rod, will be:                                                                                       [JEE Main 9-4-2019 Afternoon]

    A)  \[\frac{M{{\omega }_{0}}}{M+3m}\]   

    B)       \[\frac{M{{\omega }_{0}}}{M+m}\]

    C)  \[\frac{M{{\omega }_{0}}}{M+2m}\]   

    D)       \[\frac{M{{\omega }_{0}}}{M+6m}\]

    Correct Answer: D

    Solution :

    [d] Applying angular momentum conservation, about axis of rotation


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