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geerky42
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Four particles at the corners of a square with a side length L = 2m are connected by massless rods (See below) The particle masses are\( m_1 = m_4 = 3\) kg and \( m_2 = m_3 = 4\) kg. Find the moment of inertia of the system about the z axis.
 one year ago
 one year ago
geerky42 Group Title
Four particles at the corners of a square with a side length L = 2m are connected by massless rods (See below) The particle masses are\( m_1 = m_4 = 3\) kg and \( m_2 = m_3 = 4\) kg. Find the moment of inertia of the system about the z axis.
 one year ago
 one year ago

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geerky42 Group TitleBest ResponseYou've already chosen the best response.1
dw:1359596705890:dw
 one year ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
\[I = \sum_{i=1}^{n}mi.(ri)^2\]
 one year ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
The trick here is to Choose Orgin..Make Mass ( M3) as Orgin.
 one year ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
Wait..... I about Z I(z) = I (x) + I (y)
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
so r for m3 is zero?
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Sorry, im confused.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
and r for m1 and m4 is L? L√2 for m2, right?
 one year ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
Yes...u r right..)
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Hmm, I tried this way and i was wrong, guess i should tr again... the key answer is 56 kg*m², by the way.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
I got it. Thanks.
 one year ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
glad u did it
 one year ago
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