Hello, I am a Freshman from International University Bremen. I would like to request you to help me out with a small question. I have a system of springs. Two springs with spring constants k1 and k2. I attach them to the opposite ends of a mass m1 and then attach the other ends of the springs to a fixed point. I have now a horizontal setup of a spring, a mass, then another spring attached to each other. Could anyone tell me with small mathematical explanation what happens to the spring constant of the system?