A Mass M₁ Is Connected by a Light String That

question 22

Multiple Choice

A mass m₁ is connected by a light string that passes over a pulley of mass M to a mass m₂ sliding on a frictionless horizontal surface as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 25 cm and a moment of inertia of ½ MR². If m₁ is 4.00 kg, m₂ is 2.00 kg, and M is 4.00 kg, then what is the downward acceleration of m₁?

• A) 4.9 m/s²
• B) 4.5 m/s²
• C) 4.1 m/s²
• D) 3.9 m/s²
• E) 3.7 m/s²

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