Since two weeks ago, I have been working on a project where $n$ things are overlap together (with different coefficients of friction) for getting the force that's need for pulling them apart.

  1. Could you help me? (If all the surface is the same.)

  2. Could you help me? (if we have 2 surface with different COF.)

Overlapping cause a degree (consider that).


closed as off-topic by Bill N, Colin McFaul, ja72, Norbert Schuch, user36790 Dec 24 '15 at 2:37

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more guidance on how to edit your question to make it better" – Norbert Schuch, Community
If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ I think this needs a diagram, if you want a decent answer. $\endgroup$ – Gert Dec 23 '15 at 17:45
  • 1
    $\begingroup$ Possible duplicate of Friction forces and sliding slabs $\endgroup$ – ja72 Dec 23 '15 at 19:12
  • $\begingroup$ An answer already exists. $\endgroup$ – ja72 Dec 23 '15 at 19:12
  • $\begingroup$ To which of the items is the force applied? How are the items (masses) positioned? provide a diagram. $\endgroup$ – AHB Dec 23 '15 at 19:13