Properly destroy a qml dynamic object derived from another item

[john_god]

Hi

I have a Physics.qml

Item {
    id: root
    .........
    signal destroyBullet() 
    onDestroyBullet: {
        console.log("destroy Physics.qml")
        root.destroy()
    }
    ...........
}

Item {
    id: root
    .........
    signal destroyBullet() 
    onDestroyBullet: {
        console.log("destroy Physics.qml")
        root.destroy()
    }
    ...........
}

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and a Bullet.qml

import QtQuick 2.0
 
Physics {
    id: root
    ................
    onDestroyBullet: {
        console.log("destroy Bullet.qml")
        root.destroy()
    }
    .........
}

import QtQuick 2.0

Physics {
    id: root
    ................
    onDestroyBullet: {
        console.log("destroy Bullet.qml")
        root.destroy()
    }
    .........
}

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Bullet is dynamically created, when is destroyed, do I need to call destroy() in both Bullet.qml and Physics.qml ? Or it's enought just to call destroy in Physics.qml, or in Bullet.qml?