Recent content by ila1985

Thanks bernhard. What i was wondering is if it is more complicated force like rod bending where energy is given by E = k (theta - original theta) and new theta is given by tan(inverse) [ (x1-x2)x(x2-x3)/(x1-x2).(x2-x3))] x -> cross prdt . -> dot prdt and X1 and X2 are joined with a rod. and X2...

If I have a energy of a particle and I need to calculate the expression for force on it how do i do it. eg: energy of a spring = k*(|x1-x2| - L )^2 where x1 and x2 are particle at end of the springs and K is stiffness. L rest length.