Hello again! I just wanted to make sure that I am understanding tension force. Okay, there are 3 masses (A, B, C) and they are connected by some massless and unstrectchable rope and they are pulled with a force of T3 = # N and they are pulled on a horizontal and frictionless table: A---T1---B---T2---C----T3--> Am I correct in thinking that T1 = T2 = T3 = # N (whatever value # is)? I think that the cord connected to C with force of T3 also pulls the other bodies, A and B, with the same magnitude of T3. Also, since T3 is the magnitude of the force pulling all 3 of these bodies, can I combine the masses of the bodies and just use the value of T3 to figure out the acceleration of the system? Ma + Mb + Mc = Msys T1 = T2 = T3 = Tsys F = ma F = T = Msys(a) a = T/Msys Gracias!