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c6u 1: ph6t bi6u vi vi6t o,r, *,r11}l;1,1?':j"i]jy#'#€:: thdi giansiao d")
Cf,u 2: Duer- 6p sudt tO\t/m' mQt lugng c6 ttr6 tich h 10 lft Tinh th6 tictr cria <16 du6i 6p
:su6t S.tONl# Ct o Ui6t nniet
d0 crla hai rang th6i tr6n li nhu
Cfiu 9t TI d$ cao 10m so voi m{t Ait, mQt vflt-c6 kh6i luqng 2kg dugcndm thdng rtune len cao v6i
vgn ti5c dAu H 10m/s Liiy e:10m/s2 ,
l.Tinh dQ cao cpc d4i md vft tlpt ttu-gc so v6i m6t ddt ,lrl,^n 1t h?
2.Khiv0t & dQ cao nio so vdi m{J e6t ttri vat c6 ttQng nturg baog ba l6n th6 nang \Wh)
CAu 4z MOt tO co khOi lugng trin chuyiSn tlQng ile; dudmg neang qua a cO't {n tOc 18km/h vd d6n B c6ch A mQt khodng ld 100m vdi vfln t6c 54km/tr
l Iryfr:0ry mi fjlrc k6o "Uu dOre co dd thuc hiOn t6n doqn ttuong AB 2!d, dW ({)
Z.DAnB tei *etiitmay vd*.ii6} tpc chuy6n dQrg rna, Aa" Aai ma s6t, vd Atm{:ryri@iC Tinh d0 ddi quflng ttudmg BC
3 Gie st xe tttin D thi ttQng n6ng cta xe bdng nta tlQng n[ng t4i B, tfnh clQ dii quilng ducrng BD
Cho biiit hQ s6 ma s6t gitla bdnh xe vi m{t ttucrng kh6ng thay d6i que trmt xe cfiuy6n
tlQng p: 0,1 Ldy g=10m/s2
Ciu 5: Khi dun n6ng d[rg tfch mQt l*rOi t<tii A6 nniet e10 tane loc thi 6p su6t tang th6m lap ,uat
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ban diu Tinh nhiet dO.ban itiu cria l<hi ,
Cf,u 6:
.C6 ,12t kil"#6r,ilAii"i' +tir b Toc.Sau *hi dun n6ng ding npluErs tr6n a6n ,r,iet aO
t thi kh6i lusng ri6ng cfia khild l,2gll Tinh nhiQt d0 t cta