Source: https://s0a05578cbddcd72c.jimcontent.com/download/version/1493908108/module/9850087352/name/S%C3%A9rie%20d%27exercices%20N%C2%B08%20-%20Sciences%20physiques%20-%20Les%20oscillations%20m%C3%A9caniques%20forc%C3%A9es%20-%20Bac%20Math%C3%A9matiques%20%282016-2017%29%20Mr%20BARHOUMI%20Ezedine.pdf