Hi guys!
Could you help me with this question? I need the explanation.
A train consists of a powered engine pulling two unpowered carriages.
The engine has a mass of 20000kg, and each carriage has a mass of 5000kg. When the engine
accelerates from rest it develops a thrust (driving force) of 15000N.
Ignoring resistive forces, what is the tension (pulling force) T in the coupling between carriage 1 and
carriage 2?
A 2500N
B 3750N
C 5000N
D 7500N
E 15000N