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السؤال:

A crane is used to pick up a 50.0-m-long steel beam to place in a building. The beam is uniform, but the crane cable is placed 2.0 m off the center of the beam. How much vertical force must be placed on the guide rope to keep the beam level? The beam has a mass of 5.0 kg/m, and the guide rope is placed on the end of the shorter side of the beam.

الإجابة:

هذا المحتوى مخصص للأعضاء المسجلين فقط. يرجى تسجيل الدخول أو إنشاء حساب مجاناً!.

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