Thought Questions

Open Ended Problems
1
Are the following systems stable?


Stability

 
  • A ballpoint pen balanced on its point.
  • A ball resting in a bowl.
  • A ball resting on an inverted bowl.
  • Your national economy.

 

 

 

 

 

 

 

 

 

2
Most real physical systems are of very high order, but they can be modelled with relativelly simple models of much lower order.  Why?