Shooting A Projectile Help

Hi there.. my game is as such:

A car travelling on the z direction
Use the mouse to move the car left and right on the X direction
I have used NxOgre to shoot a physics object from the car node...

There's a moving mouse target cursor...
How would I go about making my physics object shoot at the direction of where i point the target cursor?

Thanks a lot

raycast

The first thing that comes to my mind: Basically like RayCasting (OgreRaycastingTutorial).

Get the position of your cursor and the position of your camera and the resulting vector between them should be the vector that you should use to apply as a force to your projectile. Not totally sure, but probably worth a try...