Two forces having magnitude $A$ and $\frac{ A }{2}$ are perpendicular to each other. The magnitude of their resultant is
Two forces having magnitude $A$ and $\frac{ A }{2}$ are perpendicular to each other. The magnitude of their resultant is
- [JEE MAIN 2023]
- A
$\frac{\sqrt{5}\,A }{4}$
- B
$\frac{5\,A }{2}$
- C
$\frac{\sqrt{5}\,A ^2}{2}$
- D
$\frac{\sqrt{5}\,A }{2}$
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