botafumeiro3 3 · 2012-05-29 · T = 1 2 m(˙x2 +˙y2)= 1 2 m(l˙2 +l2ϕ˙2) 1 2 ma2ω2 cos2 ωt+ 1 2 m(l0 +asinωt)2ϕ˙2 8 U = mgy= −mglcosϕ = −mg(l0 +asinωt)cosϕ 8 L= T−U

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botafumeiro3 3 · 2012-05-29 · T = 1 2 m(˙x2 +˙y2)= 1 2 m(l˙2 +l2ϕ˙2) 1 2 ma2ω2 cos2 ωt+ 1 2 m(l0 +asinωt)2ϕ˙2 8 U = mgy= −mglcosϕ = −mg(l0 +asinωt)cosϕ 8 L= T−U