Hey guys
I had a quick question regarding question 43 in aamc 5.
http://mysowar.files.wordpress.com/2011/05/43.jpg
That was from a previous post on the website.
My question is: why can't i figure the question out as follows:
v = sqrt(2gh)
vMiddle = sqrt (2g10) = sqrt (200)
vTop = sqrt(2g20) = sqrt (400)
thus 10sqrt2 / 20 = sqrt2/2
I don't know what I am missing
I get different answers when i use a different approach: sqrt (2-10-10 / 2-10-20) = sqrt 1/2
why am i getting different answers?
I had a quick question regarding question 43 in aamc 5.
http://mysowar.files.wordpress.com/2011/05/43.jpg
That was from a previous post on the website.
My question is: why can't i figure the question out as follows:
v = sqrt(2gh)
vMiddle = sqrt (2g10) = sqrt (200)
vTop = sqrt(2g20) = sqrt (400)
thus 10sqrt2 / 20 = sqrt2/2
I don't know what I am missing
I get different answers when i use a different approach: sqrt (2-10-10 / 2-10-20) = sqrt 1/2
why am i getting different answers?