حلول التدريبات العملية الديناميكا لجسمين

عندما يتحرك الجسمان بسرعة ثابتة، فهذا يعني أن تسارعهما يساوي صفرًا.

نستخدم تعبير التسارع الذي قمنا بتطويره في البند السابق:

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نعوّض a = 0:

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