[r]
(1)THI HQC Ki U nIm ho.c zAn-ZAlz tvt0N: vAT Il
r-OP rrcb -Thli giar a5 phft
Cflu 1: Dinh nglia tr) truon& n0u tinh ch.i1 cria &rong srlc tir? (1,5 d)
@!: ( 1,5 d),Pinh nghia hrc Lorenxo .Vi$ c6ng thrlc tinh lgc Efonenxo
4o duns : MQl releetron chuyAn t$sg vci vfln t6c 06m/s vdo t& tnrdng dAu B{,0 1 T vi
chiu trlc drpg cria lrrc Lore,n xo F1,6.10'ttt.fintr goc ho-? boi E vn v
Cflu 3: (1,5 dl Tt€ rrio li hisn tuqng t1r cim .viiSt 6i€u t]r&c su6t di$n dQng tu qr cf,m ,vi
+An xdt & Ionsu6t di$n &nS cim
Ap dung ; M* 6agde.y"c6 # 4r cim ,m0n0$ DonS di$a qtra &re dey Gu 11 2A d{n 1A
trongthli gianthli gian 10-2s Su.fo di€n d$ngtp cirn sinh ratrong 6*g dey h.bao nhi6u?
Glg-{:( 1,5 d )Tia s6ngtruy&rtunudc vikhric ,<*tzkhdngkhi Tiakhfc:rpvitiaphan
xa vu&€ g6c Nudc c6 chiiit iudt ln 4/3, kh6ng A chi6t su.it h 1 II2ty tt rtr Sra tri cna goc toi i?
C0u5: (1,5d)
aDinh ndria hi€n tuqng ph,fu xA toin ptrdn; DiAu ki€n ad co phf,n xrp toan pMn
b/Tinh g6c tdi grdi hflr [*ri r{r,rhn{ngtfi tr} m6i tnrong thriytinh c6 ohi6t zuf UinS Ji ru kh&rg khi
$EUS: MQt v$t gring AB d{:t rnrdng, gtu vdi @c chinh ctra m$t th.iu kinh phen ki c6 ti6u
qr le -30qq, Bi6t rlng AB crflch 1h.6.i t r{,h mOt Soan 60cm )fts dith vi ti 6nh, tinh chlt
enh d0 phong dai enhvivE Anh? (1,5 d)
Cflu 7: (1,5 d ) Hai aay dfrn th8ng +r d# song song tong khdng vi crlch doAn
10 cm, ddng eliSn ch?y qua hai diy dfln co ctrng chi6u vi cring cuimg d0 h 2A
a) VG vec{o cim img tr} trSng hsp t4r di6m M crtuh day th* ntr6t + cm vi cdch dfly thr?
b) Xic dinh dO lcn cdrn ung tt t6ng ho-T t+i M I{ET