SEE ATTACHMENT #1 for a diagram with parameters.
Block B whose weight B= 22 nt, is placed on top of Block A whose weight is A= 44 nt.
The coefficient of friction for all surfaces is f= .20. A horizontal force P is applied to A to slide both objects across the horizontal table.
Find the maximum force P such that block B does not slide relative to Block A.
See attachment #2.
On the diagram shown in ATTACHMENT #1 show all existing forces as arrows. Then see ATTACHMENT #2 to check your work.
Applying 'net force = m a' to only Block A, with forces shown on ATTACHMENT #2, and ...
In a step by step solution, the problem is explained and solved.