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3-2.Motion in Plane
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એક શંકુમાં કણ $v$ ની ઝડપથી વર્તુળમય ગતિ કરે છે.તો...

A$v = \sqrt {rg/\tan \;\theta } $
B$v = \sqrt {rg\;\tan \theta } $
C$v = \sqrt {rg\;\cot \theta } $
D$v = \sqrt {rg} /\cot \theta $

Solution

$\frac{{m\,{v^2}}}{r} = R\cos \theta $ ….(i)
$mg = R\sin \theta $ ….(ii)
$\frac{{{v^2}}}{{rg}} = \cot \theta $
$\therefore v = \sqrt {rg\cot \theta } $
Standard 11
Physics

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