تم الإجابة عليه: اذا كان طول ذراع القوة في الرافعة يساوي نصف طول ذراع المقاومة فما النسبة بين السرعة الذراعين

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تم الإجابة عليه: اذا كان طول ذراع القوة في الرافعة يساوي نصف طول ذراع المقاومة فما النسبة بين السرعة الذراعين

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