حل التدريبات العملية: الحركة التوافقية البسيطة في نابض أفقي وبندول بسيط

3.9

نحسب سرعة الجسم عندما يمر بالموقع X=-2m، باستخدام الدالة  V(x).

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عندما يمر الجسم لأول مرة بالموقع $$X=-2m، يكون متجهًا عكس اتجاه المحور، لذلك تكون سرعته سالبة.