Chapter 1, Problem 4E

Three rigid bodies, 2,3, and 4, are connected by four springs as shown in the figure. A horizontal force of 1,000 N is applied on body 4 as shown in the figure. Find the displacements of the three bodies and the forces (tensile/compressive) in the springs. What is the reaction at the wall? Assume the bodies can undergo only translation in the horizontal direction. The spring constants (N/mm) are: $k^{\left(1\right)}=400,k^{\left(2\right)}=500,k^{\left(3\right)}=400,k^{\left(4\right)}=200$.