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        1. Ӣҽ̾W(wng) > > }ĿԔ
          һʯӢ犵ķᘺ͕r(sh)ᘵL(zhng)֮Ȟ32ɿDŽD(zhun)(dng)t
          Aᘺ͕r(sh)D(zhun)һȦĕr(sh)g֮Ȟ160
          Bᘺ͕r(sh)ᘵᘼD(zhun)(dng)ľ(xin)ٶ֮Ȟ401
          Cᘺ͕r(sh)D(zhun)(dng)Ľٶ֮Ȟ121
          Dᘺ͕r(sh)D(zhun)(dng)֮Ȟ16
          ADᘵڞT(mn)=1hr(sh)ᘵڞT(mn)r(sh)=12h֮ȞT(mn)Tr(sh)=112Ae(cu)`De(cu)`
          BᘵڞT(mn)=1hr(sh)ᘵڞT(mn)r(sh)=12h֮ȞT(mn)Tr(sh)=112v=
          2r
          T
          о֪ᘵľ(xin)ٶǕr(sh)ᘵ18Be(cu)`
          CᘵڞT(mn)=1hr(sh)ᘵڞT(mn)r(sh)=12h֮ȞT(mn)Tr(sh)=112ɦ=
          2
          T
          о֪ᘵĽٶǕr(sh)ᘵ12C_
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          (x)(c)ϵд
          P(gun)(x)}

          Ŀ (li)ԴԔ (wn)}

          ijͬW(xu)Lƽ\(yn)(dng)܉Er(sh)õIJ܉E(xin)Dʾ(xin)ȡABC(g)c(din)y(c)õABCc(din)gQֱxh1=10.20cmh2=20.20cmABCc(din)gˮƽxx1=x2=12.40cmgȡ10m/s2twƽ\(yn)(dng)ijٶȴС_(ki)_____m/s܉EBc(din)˲r(sh)ٶȴС_(ki)_____m/sӋ(j)Y(ji)λЧ(sh)֣

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ x}

          DמŎC(j)ĴŎɺ(jin)DʾĂ(dng)ģͣABp@Ŏăɂ(g)݆݆İ돽rڷY(ji)r(sh)Ŏȫ@B݆ϣŎ⾉돽R=3rF(xin)M(jn)еʹŎ@A݆ϣr(sh)A݆(dng)݆ٶǺ㶨B݆ǏĄ(dng)݆tڵ^(gu)f(shu)_ǣ
          A_(ki)ʼr(sh)AB݆Ľٶ֮Ȟ13
          BY(ji)r(sh)AB݆Ľٶ֮Ȟ13
          C^(gu)дŎ\(yn)(dng)ٶ׃
          D^(gu)дŎ\(yn)(dng)ٶȲ׃

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ }

          ^(gun)܇(ch)Ҫ(dng)˽܇(ch)朗l(li)(q)(dng)݆ǰM(jn)ģDʾX݆СX݆݆ߵİ돽քe10cm5cm30cm߅(g)c(din)ABCtABCߵľ(xin)ٶȴС֮Ȟ_(ki)_____ٶ֮Ȟ_(ki)_____

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ x}

          C(j)еֱеķcr(sh)ᘵĽٶ֮Ȟ飨
          A241B124C121D112

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ x}

          xĝTb늄(dng)C(j)(dng)ɂ(g)֧݆ͬD(zhun)(dng)ܠģͷ@ɂ(g)݆ϿĦD(zhun)(dng)DʾFˮע֮xFˮooģ͵ă(ni)Ķɵõ܌(sh)TTr(sh)D(zhun)ٲ^(gu)tFˮ(hu)Óxģ̓(ni)a(chn)Ʒ֪ܠģ̓(ni)ڰ돽RtܠģD(zhun)(dng)ͽٶȦ؞飨
          A
          g
          R
          B
          g
          2R
          C
          2g
          R
          D2
          g
          R

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ x}

          ˆDǴŎC(j)ĴŎʾDABp@Ŏăɂ(g)݆ӣ돽rC^ڷ_(ki)ʼǰŎȫ@B݆Ŏ⾉돽RR=3rF(xin)M(jn)зʹŎ@A݆ϣr(sh)A݆(dng)݆Ŏ(jng)^(gu)^ٶǺ㶨B݆ǏĄ(dng)݆(jng)y(c)Ŏȫ@A݆Ҫĕr(sh)gtt_(ki)ʼAB݆ĽٶҪĕr(sh)gǣ
          A
          t
          2
          B
          t
          2
          t
          2
          D˕r(sh)go(w)_

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ x}

          һ(g)|(zh)c(din)وA\(yn)(dng)r(sh)ȵĕr(sh)g(ni)
          Aͨ^(gu)λBͨ^(gu)ĻL(zhng)
          Cٶȵ׃DD(zhun)^(gu)ĽǶ

          鿴𰸺ͽ>>

          Ŀ (li)ԴԔ }

          DʾƤ(dng)b݆ABͬSABC e(g)݆߅|(zh)c(din)RA=RC=2RBtP(gun)ϵǣ AB C = _____________    vA vB v= ______________

          鿴𰸺ͽ>>

          ͬ(x)(c)