The acceleration of the train(a)

The engine exerts a force of 60000N on all 6 compartments

Accelerating force on the compartments(F) = 60000N

Number of compartments (n) = 6

Mass of the compartment (m1)=1000kg

The mass of 6 compartments carried by the engine(m) = m1*n

= 6*1000

**m = 6000kg**

According to second law of newton

F= m*a

60000 = 6000*a

a = 600006000

**a = 10m/s2**

**The acceleration of the train and the compartment (a) = 10m/s2**