Physics - Kinematics Question with Solution | TestHub

A projectile is thrown with some initial velocity $u$ at an angle $\theta$ to the horizontal. Its speed when it is at the highest point is $\sqrt{\frac{2}{5}}$ times the speed v when it is at height half of the maximum height. Then ratio $\frac{v}{u}=\sqrt{\frac{n}{8}}$. Find the value of n .