Choose the correct option
(i) The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is `60^(@)`.
(ii) A missile is fired for maximum range with an initial velocity of `20 m//s`, the range of the missile is `40 m`.
(iii) A ball is projected with a kinetic energy `E` at an angle of `45^(@)` to the horizontal. At the highest point during its flight, its kinetic energy will be `E//2`.
(iv) An object is projected at an angle of `45^(@)` with horizontal. The horizontal range and the maximum height will be in the ratio `4:1`

Options

A. (i), (ii)
B. (ii), (iii)
C. (i), (iv)
D. all option are correct

Answer

D