Consider Two Masses, M₁ = 3

Multiple Choice

Consider two masses, M₁ = 3.0 kg and M₂ = 2.5 kg, connected by a strong cord of negligible mass that extends over a frictionless pulley. Mass M₁ is placed on a surface that makes an angle of 30° with respect to the horizontal, while mass M₂ is hanging freely. The coefficient of kinetic friction between the surface and the mass is 0.25. Assuming that the acceleration of gravity is 10 m/s², the acceleration of mass M₁ is

A) 0 m/s².
B) 1.0 m/s².
C) 2.0 m/s².
D) 3.4 m/s².