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مشاهدة النسخة كاملة : ضروري


هامة العز
17-04-2013, 15:47
السلام عليكم و رحمة الله و بركاته

اتمنى احد يساعدني :confused:

Example: When two objects of unequal mass are hung vertically over a frictionless pulley of negligible mass, as in Figure, the arrangement is called an Atwood machine. The device is sometimes used in the laboratory to measure the free-fall acceleration. Determine the magnitude of the acceleration of the two objects and the tension in the lightweight cord.
If we assume m2< m1 then object 2 must accelerate upward and object 1downward when Newton`s second law