(adsbygoogle = window.adsbygoogle || []).push({}); HELP!! L-shaped tank problem!

1. The problem statement, all variables and given/known data

The L-shaped tank shown below is filled with water and is open at the top.

(a) If d = 7.0 m, what is the force on face A due to the water?

(b) What is the force on face B due to the water?

2. Relevant equations

F=PA

P=pgh

3. The attempt at a solution

I've got the (a) part right: pgd*A = 1000*9.8*14*49 = 6722800.

However, I don't have a clue how I can get pressure on face B!

I tried setting distance as 3d = 21 and 4d = 28, and area as d^2 = 49, but nothing seems to work.

The answer is supposed to be 8.40e+06.

I need to know this for exam on Tuesday.

Please, HELP!!!!!!!

picture's at http://www.webassign.net/hrw/hrw7_14-33.gif

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# HELP L-shaped tank problem!

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