How to Solve HX Equation in Physics?

[foo9008]

Homework Statement

IMO , the hx should be [ [(V1)^2] - [(V2)^2 ] ] / 2g , am i right ?

Homework Equations

The Attempt at a Solution

 

[BvU]

Yeah.

 

[foo9008]

Yeah.

however , in this link , the hx is [ (V1- V2)^2] / 2g ... which one is correct ? [ [(V1)^2] - [(V2)^2 ] ] / 2g or [ (V1- V2)^2] / 2g ??
http://www.iith.ac.in/~ksahu/class12_FM.pdf
please refer to pg 6 & 7

 

[BvU]

Confusing indeed. Have to withdraw my "Yeah" in post #2 -- -- and turn it into a "Nope".
From your link it appears that a combination of Bernoulli and momentum balance indeed leads to this 4.28 in post #1.
So: we stand corrected ! Well done ! (your part at least...)

 

[foo9008]

Confusing indeed. Have to withdraw my "Yeah" in post #2 -- -- and turn it into a "Nope".
From your link it appears that a combination of Bernoulli and momentum balance indeed leads to this 4.28 in post #1.
So: we stand corrected ! Well done ! (your part at least...)

ok , so the link is correct ? i understand the expaination provided in the link and kniow my mistake already.

 

[BvU]

My "Yeah" has lost some of its weight, but: yeah

 

[foo9008]

My "Yeah" has lost some of its weight, but: yeah

i thought your yeah mean 'yes'

 

[BvU]

In short: yes, the links in post #1 and also in post #3 are correct. In fact the link in #2 agrees quite well. (more egg on face...)
And yeah, I mean yes with "yeah" and no with "nope". Bad habit on a forum like PF, I know. But I can't help it .