In a projectile motion, velocity at maximum height is
$\frac{{u\,\cos \,\theta }}{2}$
$u\,\cos \,\theta $
$\frac{{u\,\sin \,\theta }}{2}$
None of these
The velocity at the maximum height of a projectile is half of its initial velocity $u$. Its range on the horizontal plane is
If the initial velocity of a projectile be doubled, keeping the angle of projection same, the maximum height reached by it will
The angle of projection at which the horizontal range and maximum height of projectile are equal is
A cricketer can throw a ball to maximum horizontal distance of $100\,m$ . With the same speed how much high above the ground can the cricketer throw the same ball ......... $m$
A ball is projected with a velocity, $10 ms ^{-1}$, at an angle of $60^{\circ}$ with the vertical direction. Its speed at the highest point of its trajectory will be$............... ms ^{-1}$