menu search
brightness_auto
Feel free to answer or ask any questions.
If you are new here please see how to use or FAQ.
more_vert

Two uniform circular discs are rotating independently in the same direction around their common axis passing through their centres. The moment of inertia and angular velocity of the first disc are 0.1 kg-m2 and 10 rad s-1 respectively while those for the second one are 0.2 kg-m2 and 5 rad s-1 respectively. At some instant they get stuck together and start rotating as a single system about their common axis with some angular speed. The kinetic energy of the combined system is :

(1) $20\over3$J

(2) $5\over3$J

(3) $10\over3$J

(4) $2\over3$J

thumb_up_off_alt 2 like thumb_down_off_alt 0 dislike

Your answer

If you are answering for the first time, please read the guidelines.

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.
Welcome to Jee Neet QnA, where you can ask questions and receive answers from other members of the community.

Most active Members

this week:

    1,101 questions

    731 answers

    345 comments

    58 users

    ...