Yes. Let's do first "floor on block". The relevant expression is Friction = Ffloor on block, x = μ Ffloor on block, y. Do you see how it works? So, what do you need to find the force of friction?Friction is a horizontal force. I'm assuming friction would be the floor on block, floor on man?
Please answer my last question in B, in post #23. Then you will see better what's going on.I'm really lost as to what I'm even trying to figure out now.