A Rankine (oval) half-body PP is subjected to a two-dimen-sional flow (x, y coordinate directions from origin O) with uniform velocity V, resulting in typical streamlines as shown in the figure by dotted lines. The point A on the body surface is

A projectile is fired horizontally with a velocity of 6 m/s from a point of height h m above and 12 m away from an object. What is the value of h required so that projectile hits the object ?