A Mass M = 4

question 52

Multiple Choice

A mass m = 4.0 kg is connected,as shown,by a light cord to a mass M = 6.0 kg,which slides on a smooth horizontal surface.The pulley rotates about a frictionless axle and has a radius R = 0.12 m and a moment of inertia I = 0.090 kg.m².The cord does not slip on the pulley.What is the magnitude of the acceleration of m?

• A)2.4 m/s²
• B)2.8 m/s²
• C)3.2 m/s²
• D)4.2 m/s²
• E)1.7 m/s²

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