## 5 thoughts on “3.56”

1. wnemeth says:

I believe there's a copy error in your modal mass matrix. Should be 0.5788 instead of 5.788, right?

2. valeserranou says:

why is there a +1 at the end of the physical solutions? how did you get that?

1. tutorpaul says:

The $+1$ is there because of the transient part of the modal solutions (the 1.19 and 0.288). When transforming to the physical coordinates they combine to be one; note that the physical solution satisfies the given initial condition for the system.