[Figure: Atwood machine diagram showing two masses connected by a rope over a pulley]
An Atwood machine is shown in the diagram at the right with m₁ = 0.60 kg and m₂ = 0.40 kg. What is the magnitude of the acceleration of m₂? Ignore friction and the mass of the pulley.
(A) 4.2 m/s²
(B) 3.3 m/s²
(C) 2.0 m/s²
(D) 5.0 m/s²
(E) 1.0 m/s²