Choose the correct alternative (s)

Options

A. If the greatest height to which a man can throw a stone is h, then the greatest horizontal distance upto which he can throw the stone is 2h.
B. The angle of projection for a projectile motion whose range R is n times the maximum height is `tan^(–1)`(4/n)
C. The time of flight T and the horizontal range R of a projectile are connected by the equation g `T^2` = 2Rtan`theta` where `theta` is the angle of projection.
D. A ball is thrown vertically up. Another ball is thrown at an angle `theta` with the vertical. Both of them remain in air for the same period of time. Then the ratio of heights attained by the two ball 1 : 1.

Answer

A, B, C, D