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Grade: 11 
        I want to answer this question fast -@@@@@@@@@@@@@@@@@@--@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@$@@@@@$@@@@
2 years ago

Answers : (1)

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DR STRANGE
212 Points 
							
HI ADESH,
USE THIS,
\omega_{2}^{2}-\omega_{1}^{2}=2\Theta \alpha 
put \omega _{1}=\omega and \omega _{2}=\frac{\omega }{2 } and \Theta =120rotations
get
 \alpha = -\frac{\omega ^{2}}{320}
now put this in the first equation,
with 
\omega _{1}=\frac{\omega }{2} 
\omega _{2}=0
and find \Theta ans is option c , 40 rotations
2 years ago
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Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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