حلول التدريبات العملية 3- مسارات رأسية

9. 3.2-

نرسم مخطط للقوى المؤثرة على الجسم عندما يمر بالنقطة C. 

نكتب معادلة الحركة في اتجاه نحو مركز المسار الدائري:

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