 #1
teo11
 7
 0
 Homework Statement:

Hey!
This is my first thread so please be kind.
Suppose there are n blocks for instance 3 stacked on top of one another and a force F is applied on the bottom one. Let the blocks from bottom to top be 1,2,3,…,n. Let the friction coefficients be u1, u2,…un. Now I want to know on which surfaces will slipping occur.
 Relevant Equations:
 Newtons laws of motion
So far I have reached a pretty promising equation that if uk * g >= F/(m1+m2+…+mn) then kth block will atleast surely not slide wrt the lower one. But the converse to this that if uk * g < … then it will “surely” slide is wrong!!
Stuck on this from many days!
Thanks (:
Stuck on this from many days!
Thanks (: