I have some Cubes (with rigidbodies) in my scene that I want to blow up. How do I get them to react/get affected by for example a bomb thrown in front of them? I found the following code that works nice, but I would like the cubes to be thrown up in the air as well.

var explosionTime = 1.0;
var explosionRadius = 3.0;
var explosionPower = 500.0;

function executeCollision()
{
    var colliders : Collider[] = Physics.OverlapSphere( transform.position, explosionRadius );  

    for( var hit in colliders )
    {
        if( hit.rigidbody )
            hit.rigidbody.AddExplosionForce( explosionPower, transform.position, explosionRadius );
    }
}