I dont fully get why y=h(t)-lcos(theta), instead of y=h(t)+lcos(theta). you state that h(t) is the long distance but i dont get that, since h(t) is just the movement of the support. Could you elaborate on that plz?
Because the origin of coordinates is where you measure the potential energy from, then the height of the mass is given by y = h(t) - L cos (ø) at any time. Hope this helps
Hola, muchas gracias por compartir. Podrías indicar de qué libro proviene el problema que has resuelto? Gracias
Hola, Lagrangian and Hamiltonian Mechanics, M.G. Calkin.
I dont fully get why y=h(t)-lcos(theta), instead of y=h(t)+lcos(theta). you state that h(t) is the long distance but i dont get that, since h(t) is just the movement of the support. Could you elaborate on that plz?
Because the origin of coordinates is where you measure the potential energy from, then the height of the mass is given by y = h(t) - L cos (ø) at any time. Hope this helps