20 13 China traditional riding and shooting competition

On the horizontal plane, the arrow participates in two sub-movements, namely, in the direction of the arrow and in the direction of the horse running, as shown in the figure.

A, to hit the target, you must aim at the left side of the target and put an arrow. The advance payment is x=v 1 t= v 1 d v 2, so A is wrong and B is wrong.

C, because the movement time is equal to the minute movement time along the arrow direction, the minimum displacement time of minute movement along the arrow direction is the shortest.

The shortest time t= d v 2, so c is correct;

D, do linear motion after leaving the string, so D is wrong;

So choose: C.