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Unformatted text preview: to each other. For a principal axis holds: I x = I y = I z = 0 so L n = 0 The following holds: k =a ijk i j with a ijk = I iI j I k if I 1 I 2 I 3 . 1.6.3 Time dependence For torque of force holds: = I ; d L dt =  L The torque T is dened by: T = F d . 1.7 Variational Calculus, Hamilton and Lagrange mechanics 1.7.1 Variational Calculus Starting with: b a L ( q, q,t ) dt = 0 with ( a ) = ( b ) = 0 and du dx = d dx ( u )...
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 Spring '10
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 Dynamics, Moment Of Inertia

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