Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • The rotation of the earth having radius about its axis speeds up to a value such that a man at latitu

The rotation of the earth having \mathrm{R} radius about its axis speeds up to a value such that a man at latitude angle  \mathrm{60^{\circ}} feels weightlessness. The duration of the day in such a case is.
 

Option: 1

\mathrm{2 \pi \sqrt{\frac{R}{g}}}

 


Option: 2

\mathrm{\quad 4 \pi \sqrt{\frac{R}{g}}}

 


Option: 3

\mathrm{2 \pi \sqrt{\frac{g}{R}}}
 


Option: 4

\mathrm{\quad 4 \pi \sqrt{\frac{g}{R}}}


Answers (1)

best_answer

\mathrm{ 0=g-R \omega^2 \cos ^2 60^{\circ} }

\mathrm{ \Rightarrow \frac{R^2 \omega^2}{4}=g }

\mathrm{ \Rightarrow \omega=2 \sqrt{\frac{g}{R}} }

\mathrm{ \Rightarrow T=4 \pi \sqrt{\frac{R}{g}} }

Hence option 2 is correct.


 

Posted by

Anam Khan

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 exam stress? 17 year-old MBBS aspirant dies by suicide in Goa; police launch probe
anam-khan

NEET UG 2026 Exam LIVE: Re-NEET dates soon for MBBS, BDS admissions; registration fee refund, NTA paper leak
anam-khan

'Abolish NEET', says Tamil Nadu CM Vijay citing structural flaws; backs 12th marks for MBBS admission

Latest Question