Physics

Problem

The initial speed of a projectile fired from ground is

u

. At the highest point during its motion, the speed of projectile is

\sqrt{3}/2 u

. The time of flight of the projectile is (2023 Main, 31 Jan I) (a)

\frac{2u}{g}

(b)

\frac{u}{2g}

(c)

\frac{u}{g}

(d)

\frac{\sqrt{3}u}{g}