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 30.0 cm and a moment of inertia of MR².If m₁ is 4.00 kg,m₂ is 4.00 kg,M is 4.00 kg,and the angle is 70.0 degrees,then what is the acceleration of m₁?

A) 3.10 m/s²
B) 2.89 m/s²
C) 2.43 m/s²
D) 2.15 m/s²
E) 1.49 m/s²