#### Amanda_Riley

Joined May 12, 2010
22
Im new to state space and need to know why in the attached jpeg is

x1(dot) = x2

x2(dot) = -k/mx1 - b/mx2 + 1/mu

#### Attachments

• 73.9 KB Views: 24

#### Georacer

Joined Nov 25, 2009
5,182
What is it you don't understand exactly? The author had already specified the system dynamics equations and he let
$$x_1=y x_2=\dot{y}$$

After that it's just substitutions.