Simple Ball rolling

Hi all,

Im new to Ogre and Ogre newt... and for that matter games programming in general

I have a ball which I want to 'roll' as I move around the screen... at present I can move the ball around quite freely using
body->addForce(force)
and I have what I would call a rubbish rolling mechanic using the same force that I apply to move...
body->addTorque(force);

but I want to make it roll correctly... as it would irl

I would Imagen that this is done by using collision between matID's but I'am not sure. Any Ideas?