For given systen ${\theta _1}$ ....... $^o$
For given systen ${\theta _1}$ ....... $^o$
- A
$30$
- B
$45$
- C
$60$
- D
${\tan ^{ - 1}}\left( {\frac{1}{2}} \right)$
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- [AIEEE 2003]
Write different type of common forces.
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