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4-1.Newton's Laws of Motion
hard
આપેલ તંત્ર માટે ખૂણો ${\theta _2}$ કેટલો થશે .
A
$30^o$
B
$45^o$
C
$60^o$
D
${\tan ^{ - 1}}\left( {\frac{1}{2}} \right)$
Solution
$\frac{{\sin {\theta _2}}}{{\cos {\theta _2}}} = \frac{{mg}}{{2mg}}$$ \Rightarrow $ $\tan {\theta _2} = \frac{1}{2}$
$\therefore {\theta _2} = {\tan ^{ – 1}}\left[ {\frac{1}{2}} \right]$
Standard 11
Physics
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