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## Homework Statement

In the figure below, a chain consisting of five links, each of mass 0.103 kg, is lifted vertically with a constant acceleration of magnitude

*a*= 2.49 m/s2.

(a) Find the magnitude of the force acting between link 1 and link 2.

(b) Find the magnitude of the force acting between link 2 and link 3.

(c) Find the magnitude of the force acting between link 3 and link 4.

(d) Find the magnitude of the force acting between link 4 and link 5.

(e) Find the magnitude of the force

(f) Find the magnitude of the net force accelerating each link.

## Homework Equations

## The Attempt at a Solution

I didn't quite know what I was supposed to do, so googled the problem (I'm not really trying to cheat though). I found this https://answers.yahoo.com/question/index?qid=20110322030804AAe7RWU. While I can see how to get each of those answers, I don't understand why you just keep on adding the values. Also, there are many forces acting on each link, so what does the question mean by the force "acting between" certain links? Understanding how to solve probs is more important than just solving them for me, so please help me understand why.