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
$\frac{\sqrt{5}\,A }{2}$
Similar Questions
Prove the associative law of vector addition.
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A bus is moving on a straight road towards north with a uniform speed of $50\; km / hour$ then it turns left through $90^{\circ} .$ If the speed remains unchanged after turning, the increase in the velocity of bus in the turning process is
A bus is moving on a straight road towards north with a uniform speed of $50\; km / hour$ then it turns left through $90^{\circ} .$ If the speed remains unchanged after turning, the increase in the velocity of bus in the turning process is
- [AIPMT 1989]
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The magnitudes of vectors $\vec A,\,\vec B$ and $\vec C$ are $3, 4$ and $5$ units respectively. If $\vec A + \vec B = \vec C$, the angle between $\vec A$ and $\vec B$ is
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- [AIPMT 1988]