how will we shown acceleration and velocity vectors direction in unity 3d game?

In a plane if i move a ball i need to show the velocity and acceleration directions like vectors… i want to show in play mode… please tell what are the possibilities in unity or else give me an idea… so that i can try…

Advance thanks to all…

  1. Grab a few arrow images or mesh arrows. Set them up so that forward points to forward of the gameobject
  2. Set each: transform.forward = vectorDirection