Trddng DHSP TP. IICM Khoa Vat Ly ' Pn ruu uON: cd Lf rHuvfr Thiligian:90 phriL C6u 1: Thinh ldp cdng thf'c tinh vfln trJc vd gia tdc trong roa <10 crlc. Ciu 2: Xdt chf,i tlidm chuydn dQng clttdi tric dung duy nhdt cria luc ddy xuy€n rdnr F - ma)'r (@z h hXng sd ti le , r li brin kinh vectd ndi til gdc O cd clinh li tdrn cria rnrdng ltrc d€h v! tri cfia cht't didm) . a) Chfng minh rhng chat didm chuydn ddng trong I m{t phing cd Cinh. Xdc dinh mdr ph8ng ndy. b) Chgn oxy,ld m4t phf,ng cddinh n6i tr0n, tim phddng trinh qu! rJao cria ch6't rlidin vtii cdc rjidu ki6n ban ddu: 'dx cll c) Tim cd ndng cria hQ. i CAu 3: Hinh trg trdn d6ng chdt bdn kinh a, khdi ltlrlrrg m lin kh0ng trdet theo mdt trong cfia rc tt{r r4nr.bai,*er l6ch nhrtrrng rhintr ctrl'ng mQt g6, 00, sau clti thd nhe cld tru nh6 chuydn d$ng. a) firn him Lagrange cfia ctl hQ. LJ{ $. tt aL ba- -Dua 0a 3 . Ly ' Pn ruu uON: cd Lf rHuvfr Thiligian:90 phriL C6u 1: Thinh ldp cdng thf'c tinh vfln trJc vd gia tdc trong roa <10 crlc. Ciu 2: Xdt chf,i tlidm chuydn dQng clttdi. thd nhe cld tru nh6 chuydn d$ng. a) firn him Lagrange cfia ctl hQ. LJ{ $. tt aL ba- -Dua 0a 3 . ch6't rlidin vtii cdc rjidu ki6n ban ddu: 'dx cll c) Tim cd ndng cria hQ. i CAu 3: Hinh trg trdn d6ng chdt bdn kinh a, khdi ltlrlrrg m lin kh0ng trdet theo mdt trong cfia rc