Recent content by Ffop

This is exactly what i mean. I think i will take a closer look at the potential gravitational energy term i suppose. Still not sure how a quadratic term will arise from the gravitational potential (for matrix form). Thank you all for the answers anyway.

Homework Statement I want to find an expression for the eigenfrequencies of a vertical spring-mass-spring-mass system by using the potential energy V and kinetic energy T in matrixform. Both springs have the springconstants k, and both masses are m. The springs unstretched length are l. I have...