Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Two identical planets each of mass are approaching towards each other due to their mutual gravitation

Two identical planets each of mass \mathrm{m} are approaching towards each other due to their mutual gravitational field. If the speed of one planet relative to the other is \mathrm{v}, the K.E. of the system is equal to
 

Option: 1

\mathrm{(1 / 2) m v^2}

 


Option: 2

\mathrm{mv^{2}}
 


Option: 3

\mathrm{(1 / 4) m v^2}

 


Option: 4

None of these


Answers (1)

best_answer

The K.E. of the system of two mass system moving under their mutual interaction can be given as \mathrm{\mathrm{KE}=(1 / 2) \mu v_{\text {res }}^2}

where \mathrm{\mu=\frac{m_1 m_2}{m_1+m_2} \& V_{velocity} =\left(v_1+v_2\right)}

\mathrm{\Rightarrow \mu =\frac{mm}{m+m}=\left ( \frac{m}{2} \right )v^{2}=\frac{mv^{2}}{4}}

Hence option 3 is correct.

 

 

Posted by

mansi

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 leak probe traces guess paper trail from Kerala student to Rajasthan network
anam-khan

'Replace NTA': FAIMA files plea in SC over NEET UG 2026 paper leak
anam-khan

NEET UG 2026 Paper Leak LIVE: Protests erupt across states, paper leak probe expands; re-NEET date soon

Latest Question