1、a.h.hall 185519381879q1. 2. - 3. 1. 2. -mnpsmnihpsnmnmnisv,bfbfb=evbfbnmspvhfbehfhfbeh=vh/b , bfh+fb=0Ceeh +(Cevb)=0eh= - vb vb eh=vb v vh = b eh = bvb nis=nedbv , v=is/nedb vh = isb/ned =kh isbkh = 1/ned vh =kh is b b = vh / kh isihvhkhbvh-isbisbisbis+b+is-b+is+b-is-b-v1= vh+v0+ve+vn+vrl v2=-vh-v0-
2、ve+vn+vrl v3=-vh+v0-ve-vn-vrl v4=vh-v0+ve-vn-vrlv0vnvrlvh = v1-v2-v3+v4-vevevhth-s1. x,yyyxx1,x2, 2. 1. is010mais 2. im01aim is(ma).im(a)14imis3.vh.vo(mv)1. k1k2k3isim,isim2. x1x2( x1=14cm ,x2=0) (-x=14-x1-x2)k3,im=0.800a, 1is,v1,v2,v3,v4,vh-is3. is=8.00ma, 2imv1,v2,v3,v4,vh-im(imk3,)4. is=8.00maim=
3、0.800ax1=0 ,x2=03x1 ,x2v1,v2,v3,v4,khn,b-x,1/2(k1k3).5. isim1. 1im=0.800a2. 2is=8.00ma 3. 3is=8.00ma im=0.800a x=14-x1-x2n=109.7102/m kh=2.10mv/makgsb0?0nim?4?10?7?109.7?102?0.800?0.01103(t)?0.110(kgs)b?0.109(kgs) e?b?b00.109?0.110?100%?100%?0.9% b00.1104. 12xz.n3+p3-p1. k1k2k3isim2. isim 3. isim 4.
4、 xx1,x25. k1k3 6. vh- (1)v0 bis (2)-vhvvv-vebis (3)isvnisb (4)-vrl -vrlisbbisvhv0vevnvrl 5isbisbis+b+is-b-isbis+b+is-b+is+b-is-b-v1= vh+v0+ve+vn+vrl v2=-vh-v0-ve+vn+vrl v3=-vh+v0-ve-vn-vrl v4=vh-v0+ve-vn-vrlv0vnvrl vevhh=14v1-v2-v3+v4-ve v3_abcvh?isvh?im dth-h-1. -lbdbiabvh?va?vbnpnvfm?ev?bfvbfexfe?
5、eexex?bvvh?exbi?nevbdvh?1/(ned)ibned vh?is vh?khibkhvhib vh-ipqpq2 1?ve?v?eje?e?j?ne? ?kh? d?2kh-ibvh?0aakhnp3khnn?1/(khed)3?/83.-b?0idl?r-4?r31?0ni(cos?1?cos?2) 2b?1?0?2?b?0nib?721?0ni 2?0?4?10n/anibt-n (a m)th-h 1. ?3.00kgs/aimbbim?12. l?28cmn/ 3. n.aaccacacdexy4. isimvhv? 1is010maim01aisimimis2vh
6、v?-1. vh?isvh?imavhv?vhvhimim0.800avh?isbisis3.00mavh?imc vhv?v?v?im0is=0.20mavacv?is0.20mav?13crhn, ?irh?vhd?105 isbvhvisadcmbkgs0.1trhrh?dkh vh?isrh1vh?imrh2iin?1rheislv?s2iii?cm) v?visalcmscm?a/(v iv?rhrh,?2. x1x1x10?14.0cmx2x2x20?14.0cmx214.0cm?0x114.0cm?0isima-x?14?x1?x2x1x2x1?x2?0cmx1x2?0cmx10
7、.00.51.01.52.05.08.011.014.0cmx2x1?14.0cmx23.06.09.012.012.513.013.514.0cmv1,v2,v3,v4vhbbb-x1/2vhcbvh1vh?isim?0.500ak1?4.00v/ad?0.50mmb?3.75kgs/a?im?3.00kgsrh1?vhdkd4.00v/a?0.050cm?101?1?10?10?0.67 v cm/a kgs isbb3.00kgsvh?imis?3.00mak2?0.0153v/ad?0.50mm rh2?vhdk2d?101?10imis?3.75kgs/ais?3.75kgs/a0.0153v/a?0.050cm?10?0.68v cm/a kgs ?33. 00?10a?3.75kgs/arh?rh1?rh20.67?0.68?v cm/a kgs?0.675v cm/a kgs222n?11?9.25?1018a kgs/v cm c ?19rhe0.675?1.6?10 1 2 () - 1-.2vh?isvh?imvhisim3b 45-11bzxisnisx
