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JEE MAIN 2023
31-01-23 S1
Question
The initial speed of a projectile fired from ground is $u$. At the highest point during its motion, the speed of projectile is $\frac{\sqrt{3}}{2} u$. The time of flight of the projectile is:
Select the correct option:
A
$\frac{u}{2 g}$
B
$\frac{\mathrm{u}}{\mathrm{g}}$
C
$\frac{2 \mathrm{u}}{\mathrm{g}}$
D
$\frac{\sqrt{3} \mathrm{u}}{\mathrm{g}}$
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