سؤال يحتاج لجواب بسرعة


(system) #1

بسم الله الرحمن الرحيم
أرجوكم أريد حل لسؤال في مادة الميكانيكا الكلاسيكية(الرجاء بسرعة)

a wheel of mass M . radius of gyration k , spins smoothly on a fixed horizantal axle of radius a which passes through a hole of slightly larger radius at the hub of the wheel . the coefficient of friction between the bearing surface is M . if the wheel is initially spinning with angular velocity w0 find the time and the number of turns that it takes to stop
و لكم جزيل الشكر