[DH-12] Tensions in Frictionless Train and Acceleration

In this problem a "Train" with 3 equal masses is pulled with a force F. The acceleration of the system, and the two tensions between cars are expressed in terms of m1, m2, m3, and F. The limiting cases of M1 = Huge, and M3 = Huge are discussed. Finally the acceleration and tensions are calculated for the case where: m1 = m2 = m3 = 10 kg, and F = 100 N.

[jeffreybienstock]

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[agkiz]

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[ruskodudesko]

This video was extremely helpful thank you!

[NUFCFTW]

thanks m8 this would help a lot in my midterms

[goodgrief]

Does the answer depend upon the absence of friction?

[Supermario]

If the train has friction, would there be a frictional force acting on all the masses or just the first mass?