Which is why I like applied physics. It's not random equations, it helps you understand why things happen the way they do and what you have to do to fix problems. Can't get traction in your vehicle? Think about what is causing the loss of traction and what forces you can/need to apply in order to regain traction. Bird feeder keeps toppling over? Think about what should be keeping it stable, why it isn't stable, and what you then have to do to make it stable.