Mechanics question

When you have connected particles, how do you know if you should consider the particles individually and resolve or if you should resolve holistically?

By considering what it is you are looking for

For example, if looking for tension you need to look at one particle as the tension in the whole system cancels

Oh alright - this is a skill that will must probably just come with practice then, I guess. So, say I was looking for the acceleration of two connected particles that are connected horizontally, could I resolve holistically? If I resolved holistically, then the tensions would cancel and I'd just be left with acceleration. Is that fine?

yep -

As a guide - if you are unsure

Try the whole system first - if it cancels out what you are looking for - try splitting


As you say - it will come easier with practice

...