Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • A solid sphere is rolling on a surface its speed is and mass <img alt="\mathrm{(M)}" src="htt

A solid sphere is rolling on a surface its speed is \mathrm{(V)} and mass \mathrm{(M)}. The its kinetic energy is
 

Option: 1

10 \mathrm{mV}^2
 


Option: 2

\mathrm{7 M v^2}
 


Option: 3

\mathrm{\frac{10}{7} m v^2}
 


Option: 4

\mathrm{\frac{7}{10} m v^2}


Answers (1)

best_answer

Angular speed of sphere

\mathrm{ \omega=\frac{v}{R} }

\mathrm{ K \cdot E \cdot= \frac{1}{2} I_c \omega^2+\frac{1}{2} m v_c^2 }

\mathrm{= \frac{1}{2} \times \frac{2}{5} m R^2 \times \frac{v^2}{R^2}+\frac{1}{2} m v^2 }

\mathrm{ = \frac{m v^2}{5}+\frac{1}{2} m v^2 }

\mathrm{K \cdot E \cdot= \frac{7}{10} m v^2 }

Hence option 4 is correct.






 

Posted by

admin

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

Maharashtra NEET UG Counselling: HC refuses to let medical college hold own MBBS rounds, says plea ‘premature’
anam-khan

Over 800 MBBS seats remain vacant in deemed universities across TN, Puducherry amid high fees
anam-khan

Rajasthan NEET UG 2026: Provisional stray round merit list out, Udaipur college lists 4 BDS seats

Latest Question