public boolean isKinematic() {
        return kinematic;
    }
Sets the node to kinematic mode. in this mode the node is not affected by physics
but affects other physics objects. Its kinetic force is calculated by the amount
of movement it is exposed to and its weight.

@param kinematic true&rarr;set kinematic mode, false&rarr;set dynamic
(default=false)
jme3-jbullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java