# What is the speed of the fluid when all of it is in the horizontal section?

1. Jan 12, 2010

### befo

thanks

Last edited: Jan 12, 2010
2. Jan 12, 2010

### Mapes

Hi befo, welcome to PF. Just plugging the numbers into $v=\sqrt{2gh}$ won't work here; you've got to think about what the equation is telling you. Where did $v=\sqrt{2gh}$ come from?