A Mass M₁ Is Connected by a Light String That

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 incline as shown in the figure.There is no slippage between the string and the pulley.The pulley has a radius of 25.0 cm and a moment of inertia of 1/2 MR².If m₁ is 2.00 kg,m₂ is 1.00 kg,M is 4.00 kg,and the angle is 60.0 degrees,then what is the acceleration of m₁?

A) 3.98 m/s² down
B) 3.27 m/s² down
C) 3.15 m/s² down
D) 2.94 m/s² down
E) 1.64 m/s² down