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 2026 FAQs: NTA answers queries on ID proof, dress code, OMR rules, exam guidelines
anam-khan

NEET UG 2026 Cut-off: Arunachal Pradesh MBBS opening and closing ranks, past-year trends
anam-khan

NEET UG 2026: NTA opens scribe registration for PwD, PwBD candidates

Latest Question