A force of magnitude F= 7.30 N pushes three boxes with masses m1= 1.80kg, m2= 3.00kg and m3= 4.20kg, on a level surface.
Draw a free body diagram showing all the individual forces acting on the system consisting of boxes 2 and 3 together. Indicate the directions of the five forces listed below, choosing from vectors A-D in the diagram. If a force does not belong on the FBD, enter N.
i) gravity pulling on box 3
ii) gravity pulling on box 2
iii) box 1 pushing on box 3
iv) floor pushing on box 2
v)floor pushing on box 1
The Attempt at a Solution
I have tried many solutions like NNNAN, CCNAN,CCNBN and more but it keeps telling that I'm wrong.