- #1
dwilmer
- 11
- 0
Mechanical ad Electrical vibration EASY question please help?
In Boyce and Diprima textbook it says that:
mu'' + ku = 0 .
Then it says the general solution of this is:
u = Acos (w^2)t + B sin (w^2)t , where w^2 = k/m
It provides no explanation how it arrives at this. Where does the cos and sin come from?
PS: it is supposed to be the greek letter w, whatever that is called and it also has a sub-0 on it, but i didnt include it because it looks confusing without the right fonts.
please help, thanks
In Boyce and Diprima textbook it says that:
mu'' + ku = 0 .
Then it says the general solution of this is:
u = Acos (w^2)t + B sin (w^2)t , where w^2 = k/m
It provides no explanation how it arrives at this. Where does the cos and sin come from?
PS: it is supposed to be the greek letter w, whatever that is called and it also has a sub-0 on it, but i didnt include it because it looks confusing without the right fonts.
please help, thanks