Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Two point masses m and 2m are joined by light rod of length d. The moment of inertia of the system about an axis passing through its centre of mass and making an angle 30° with the light rod wi

Two point masses m and 2m are joined by light rod of length d. The moment of inertia of the system about an axis passing through its centre of mass and making an angle 30° with the light rod will be

Option: 1

\frac{md^{2}}{3}
 


Option: 2

\frac{md^{2}}{6}


Option: 3

\frac{md^{2}}{4}

 


Option: 4

\frac{md^{2}}{2}


Answers (1)

best_answer

Answer (2)

r_{1}=\frac{m\times 0+2md}{3m}

r_{1}=\frac{2d}{3}

r_{2}=d-\frac{2d}{3}

     =\frac{d}{3}

I=m\left ( \frac{2d}{3}\sin 30^{o} \right )^{2}+2m\left ( \frac{d}{3}\sin 30^{o} \right )^{2}

I=\frac{md^{2}}{9}+\frac{md^{2}}{18}

=\frac{3md^{2}}{18}

=\frac{md^{2}}{6}

Posted by

Sanket Gandhi

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG cut-off for MP government medical colleges drop to 50870; registration deadline, link
anam-khan

Delhi HC refuses to hear plea to conduct NEET-UG twice a year
anam-khan

NEET Photo Requirements 2025: NTA allows only coloured photograph in jpeg; changes in document format

Latest Question