Trtfc-rng EHSP TP.. HCM pi, fru UOt't: Cd Lf fgUyff Cffu l: Thinh lflp phtrdng trinh Lagrange loai hai' Cflu 2: ch{tdidm khdi ltrgng m chuydn dQng dudi tr{c.
Trang 1S 4? Ba Duy
Trtfc-rng EHSP TP HCM pi, fru UOt't: Cd Lf fgUyff
Cffu l: Thinh lflp phtrdng trinh Lagrange loai hai'
Cflu 2: ch{tdidm khdi ltrgng m chuydn dQng dudi tr{c <lung duy nhdt cfra hlc hrit xuy€n tarn
;t-' f =-nxa)tr
2
'd tdm cfia truilng lqfc ildn vi
1A/ lirhhng sd ti lq , r li brin kinh vectr1 ndi tU gdc O cd 6intr I tri cria chdt didm)
a) Chrlng.minh.rhng chdt ttidm chuydn dQng trong t m{t phing c,i dinh X6c dinh mdt
phing ndY
b) Chon oxy ld m{t phing cd oinrr nrii tr€n, tim phddng trinh qu} cl4o cfia chdt didm vili
x(o)=
^,*(o)=o ,y(o) =0,*(o)=v.,
c) Tim cd ndng cria hQ'
R khdi ldons m c6 thd quay dugc quanh truc A CAu 3: Dia trbn ddng chdt tAm O, biin kinh R, khdi lrrgng m c6 thd quay ddQc quat
j.* *En*ugu*g-vu6ng eLvdimarllia.varli qua I t1i.dlq
A*tf-e*J$Igg!$:'4.i"\.q1g5eg:;.:-*-:-'*-sau cho oA hQp vdi phrtdng thlng clrlng mQt e6c 0o rdi tne nhe Chon to4 c10 suy rQng li
gdc lQch Q $taOA vdi phtftlng thfing il(r'g t4i thiri didm Udt tcy'
a) Tim him Lagrange cria cd hQ'
Ul Xr*-ei*nen*o**rrinh-chuydn clOngeria dia iidu *"- 9o lh g6c nh6.
c) Ndu rrgc A chuydn dQng ddu tr0n ctubng trbn nhm trong mit phing chuydn dQng cfia dia vr3i brln kinh a vd vgn 'ttdc q6c Os , t\m vdn tdc t6m O cfia <lia.
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