Free body diagrams Physics (6 stacked rocks)

Question

I'm looking to create free body diagrams for the following physics problem:

6 stones are stacked on top of one another (the bottom one is the largest and the top the smallest). The exact weight of each rock is unknown. Rocks can be labled as F1, F2, F3, F4, F5, F6.

F1 is the largest rock and F6 is the smallest. The rocks are at rest so assume velocity = 0.

What would the free body diagram look like for F1 and F6?

Thank you!!

Answer 1

This forum is not set up for making diagrams, but I can describe it in words.

 

F1:

 

The sum of the weights of F2 through F6 push down on F1, and the weight of F1 pulls down.  The normal force of the surface on which F1 rests is pushing up.  The up force is in static equilibrium with the sum of the down forces.

 

F6:

 

The weight of F6 pulls down.  The normal force of the surface where F6 rests on F5 pushes up.  The weight of F6 is in static equilibrium with that normal force.