Three Boxes in Contact Rest Side-By-Side on a Smooth,horizontal Floor

Essay

Three boxes in contact rest side-by-side on a smooth,horizontal floor.Their masses are 5.0-kg,3.0-kg,and 2.0-kg,with the 3.0-kg box in the center.A force of 50 N pushes on the 5.0-kg box,which pushes against the other two boxes.
(a)Draw the free-body diagrams for each of the boxes.
(b)What magnitude force does the 3.0-kg box exert on the 5.0-kg box?
(c)What magnitude force does the 3.0-kg box exert on the 2.0-kg box?