Consider Two Masses: M₁ = 2

Multiple Choice

Consider two masses: M₁ = 2.0 kg and M₂ = 1.5 kg. Mass M₁ moves on a horizontal surface where the coefficient of kinetic friction m_k = 0.40. Mass M₂ is hanging freely. The two masses are connected by a strong cord of negligible mass that extends over a frictionless pulley. Assuming that the acceleration of gravity is 10 m/s², the tension in the cord is

A) 0 N.
B) 12 N.
C) 15 N.
D) 20 N.