Tarea 2 Fisica General Uapa

 

T`avdrsamim Ifadrti Xiri Imuktbs

DSCTDKI A`gd`adrîi y ]dc`bkbgîi

ISAG@I]TVI Eîsaci gd`drik EICAKA]IMBV Eiusta`b Cinakb XIV]ACAXI@]D Uactbr Ni`udk Cinpusi`b Sbsi NI]VACTKI 6868-89=41 ]DNI ]irdi 6 (Nbvanad`tb) EDCJI 84/8:/6869

 

Ictavamimds sbfrd dk Nbvanad`tb. ]irdi 6. Eicakatimbr? Eiusta`b Cinakb. A.- Vdsudkvd kbs saguad`tds prbfkdnis. (Uikbr 988 pu`tbs) cbrrd rrdmb mbrr pdm pdmdst dstrd rd cbr cbrrd rd 688 n d` 69 69.5 .5 sd sdgu` gu`mbs mbs.. Cik Cikcuk cukir ir su 9) T` cb vdkbcamim d` n/s y ln/j.

v>

m t  v ( n / s )>

 688 n 69 . 5 s

> 1 . 65 n / s

n  ∗9 ln s   ∗3588 s 9888 n v ( l / j )>1.65 9j 33335 ln v ( l / j )>   >33.3= ln / j 6) Ki vdkbcamim md u` ivaó` ds9888 md j178 Ln/j< ki md btrb, ds md 388 n/s. ²Cuék ds dk nés vdkbz2

Mitbs?

Cb`vdrtar ln/j i n/s

U9 > 178ln/j U6 > 388n/s

ln   ∗9888 n j   ∗9 j 9 ln 178 3588 s

niybr2 > 388n/s

 

178 9888  n

3) T` vdjîcukb nircji i 76 Ln/j, cb` nbvanad`tb rdctakî`db u`aebrnd. ²Cué`tb rdcbrrd d` 3 jbris2

Mitbs? U > 76ln/j ] > 3j M>2

m > v . t  m > 76 ( 3 ) >695 ln / j

 

=) Vdprdsd`tir gréeacind`td dk nbvanad`tb md u` nóvak qud nircji i u`i vdkbcamim md 68 Ln/j, cb` NVT. 4) Vdprdsd`tir gréeacind`td dk nbvanad`tb md u` nóvak qud d` 6 jbris rdcbrrd 968 Ln, cb` NVT. 5) Mbs iutbnóvakds masti` 4 Ln u`b md btrb, y nircji` d` sd`tambs cb`trirabs, i =8 y 58 Ln/j. ²Cué`tb tirmiré` d` cruzirsd2 Mitbs? Iutb 9? U > =8ln/j Masti`cai d`trd infbs > 4ln

 Iutb 9 x 9> 8 + =8 t >=8 t   Iutb 6 x 6>4 ∖58 t  =8 t > 4 ∖ 58 t  =8 t + 58 t >4 988 t >4 988 t    4

Iutb 6? U > -58ln/j Masti`cai d`trd infbs > 4ln

988

]adnpb md d`cud`trb2

>

8.84j

988

>8.84 j

> 3 na`

7) Mbs dsticab`ds masti` d`trd sî 988 Ln. Md I sikd u` trd` qud tirmiré 6 jbris d` kkdgir i F< md F sikd btrb jicai I, imb`md kkdgiré d` u`i jbri y nd ndma mai. i. Ci Cikc kcuk ukir ir i qu qud d ma mast sti` i`ca cai i md I sd cr cruz uzi` i`,, y qu quá á tad tadnp npb b mdspuás md jifdr pirtamb sanukté`dind`td cimi u`b md su dsticaó` (sbkucaó` gréeaci y i`ikîtaci).

Mitbs? ]i > 6j ]f > 9.4j ]riydctbrai > 988ln

vi>

vf>

988 ln 6 988 ln 9.4

>48 ln / j >57 ln / j

 xi >48 t   xf > 988 ln∖57 t  48 t >988∖ 57 t  48 t + 57 t >988 997 t  988 997

>

997

>8.:4= j

Sd d`cud`tri` cui`mb I pbsdi u`i masti`cai md?  xi > 48 ( 8.:4= ) > =6.7 ln (I)  xf >988∖57 ( 8.:4= ) > =6.7 ln ( F)

 

:) Yuá masti`cai rdcbrrdré u` nóvak muri`td =4 na`utbs sa nircji cb` u`i vd vdkb kbc cam amim im md? i) 64 Ln/ n/j j f) 64 n/ n/s sdg Mitbs?

Mdtdrna`i`mb I

] > =4 na` Ui > 64ln/j

=4 na` > =4/58n > 8.74 m > v . t 

Uf > 64n/s

m > 64 ( 8.74 )>9:.74 ln / j Mdtdrna`i`mb F

=4 na` > =4(58s) > 6,788 m > 64 ( 6788 ) >57,488 n / s

1) ²Cué`t ²Cué`tis is jb jbris ris tir tirmir miré é u` iut iutbnó bnóvak vak,, cb` nbv nbvana anad`t d`tb b rd rdcta ctakî` kî`db db u`aebrnd, d` rdcbrrdr u`i masti`cai md 538 Ln sa su vdkbcamim ds md 34 n  /s2 Mitbs?

538

m > 538ln v > 34n/s t>2

 ln∗9888 n

  >538,888 n

ln

m t > v

538,888 n 34 n / s 9:,888 3588

  >9:,888 s

>4 j

  98) T` trd` cb` NVT, sd nudvd cb` u`i vdkbcamim md 67 Ln/j. ²Yuá masti`cai rdcbrrd d` 9: sdgu`mbs2. Mitbs? v > 67ln/j t > 9:s   m>2

ln   ∗9888 n j   ∗j ln 67 3588 s 67,888 3,588

>7.4 n / s

m > 7.4 ( 9: ) >934 n / s

 

99) ²Cuék ds ki icdkdricaó` md u` nóvak cuyi vdkbcamim iund`ti d` 68 n/s cimi 4 sdgu`mbs2.

Mitbs? Ua > 8n/s Ue > 68n/s ] > 4s I> 2

i>

68∖8 4

> = n / s6

96) ²Cuék ds ki icdkdricaó` md u` nóvak qud d` = sdgu`mbs ikci`zi u`i vdkb vd kbca cami mim m md 98 Ln Ln/j /j,, ji jifa fad` d`mb mb pi pirt rtam amb b md mdkk rd rdpb pbsb sb2. 2. Vdpr Vdprds dsd` d`ti tir  r  gréeacind`td ki rdcti md vdkbcamim.

Mitbs? t > =s ve >98ln/j

98 ( 9888 ) 3588

va > 8n/s

i>

>6.7: n / s

6.7:∖8 =

> 8.514 n / s6

93) ²Yuá vdkbcamim a`acaik mdfdrîi td`dr u` nóvak cuyi icdkdricaó` ds md 6 n/s6, piri ikci`zir u`i vdkbcamim md 98: Ln/j i kbs 4 sdgu`mbs md su pirtami2   Mitbs? 98: ln

va > 2 6 i >6 n / s ve t >>4s98:ln/j

j

  ∗9888 n   ∗j ln

ve >

3588 s

ve >38 n / s va >38∖( 6 ( 4 ) ) va>38∖98 va>68 n / s n  ∗ln s

∗3588 s

 

9=) T` trd` vi i u`i vdkbcamim md 9: n/s< erd`i y sd mdtad`d d` 94 sdgu`mbs. Cikcukir su icdkdricaó` y ki masti`cai rdcbrrami d` dsd tadnpb.

Mitbs? 8 n / s – 9: n / s

va > 9:n/s t > 94s ve > 8n/s i>2 m>2

i>

94

m > va ( t ) +

9 6

6

>∖9.6 n / s

( i ) ( t )6

m > 9: ( 94 ) +

9 6

(∖9.6 ) ( 94 )6

m > 678∖8.5 ( 664 ) m > 678∖934 >934 n

94) T` nóvak qud pirtaó mdk rdpbsb tad`d u` N.V.T.U.. Ik cifb mdk prandr  sdgu`mb tad`d u`i vdkbcamim md 4 n/s. Cikcukir? i) Su vdkbcamim i kbs 98 sdgu`mbs md ki pirtami. f) Ki masti`cai rdcbrrami d` dsd tadnpb. c) Ki masti`cai rdcbrrami d`trd dk 1¿ y dk 98¿ sdgu`mbs. Mitbs? va > 8n/s ve > 4n/s ti >> 9s 2

i>

4 n / s ∖8 9s

  >4 n / s 6

>8 + 4 ( 98 ) >48 n/ s  I ² ve   > F ² va ( t ) +

9 6

9

( i ) ( t )6 >8 ( 98 ) + (4 ) ( 98 )6 6

² 8 + 6.4 ( 988 ) >648 n C ²

 9 6

( 4 ) ( 1 )6>6.4 ( :9 )> 686.4 n

² 648 n∖686.4 n> =7.4 n

 

95) T` nóvak qud pirtd mdk rdpbsb, pbsdd u`i icdkdricaó` md = n /s6. i) Jikkir su vdkbcamim ea`ik i kbs 96 sdgu`mbs. f) Jikkir ki masti`cai rdcbrrami d` dsd tadnpb. Mitbs? va > 8n/s 6 i >= n / s t > 96s ve > 2

 I ² ve   > >8 + = ( 96 )> =: n / s F ² m >va ( t ) +

9 6

( i ) ( t )6 

9

² 8 ( 96 ) + ( = ) ( 96 )6 6

² 8 + 6 ( 9== )>6:: n 97) Mdsmd kb iktb md u`i tbrrd md 6=4 ndtrbs md ikturi sd mdoi cidr u`i padmri. i) ²Cué`tb tirmi d` kkdgir ik sudkb2 f) ²Cb` quá vdkbcamim kkdgi ik sudkb2 Mitbs? j > 6=4n 6 g> 1.: n / s va > 8n/s ve > 2 t>2

I)

 t >

∟ ∟ 6j

g

 >

  6 ( 6=4 ) 1.: n / s

> 6

∟

  =18 n 1.: n / s

6

>∟ 4488 s6>7.87 s 

F) 6

ve >1.: n / s (7.87 s )>51.6:5 n / s  

9:) ²Yuá vdkbcamim ikci`zi u`i padmri kudgb md 7 sdgu`mbs md ciîmi2 ²Yuá ikturi rdcbrrd d` dsd tadnpb2 Mitbs? va > 8n/s t > 7s ve > 2 j>2

ve >1.: n / s (7 ) > 5:.5n/s 6

9

6

j > ( 1.: n / s )( 7 ²² 6)> =.1 ( =1 )>6=8.9 n ² 6

 

91) ²Yuá vdkbcamim ikci`zi u`i padmri kudgb md = sdgu`mbs md ciîmi2 ²Yuá ikturi rdcbrrd d` dsd tadnpb2 Mitbs? va > 8n/s t > =s ve > 2 j>2

ve >1.: n / s ( = ) > 31.6n/s 6

j > 9 ( 1.: n / s6 )( = ²² 6)> =.1 ( 95 )>7:.= n ² 6

68) Sd ki`zi u` prbydctak jicai irrafi cb` u`i vdkbcamim md 61= n /s. i) ²Yuá ikturi ikci`zi i kbs 3 sdgu`mbs2 f) ²Yuá ikturi néxani ikci`zi2 Mitbs? va > 61=n/s t > 3s ve >8n/s j>2

I)

9

j >va ( t )+ 0 ² 6

j >61= ( 3 ) ∖ =.1 ( 3 )    

6

² ::6∖ =.1 ( 1 )> ::6∖==.9 ² :37.1 n 

F)

ve >61= ∖1.: t  8 >61= ∖1.: t  1.: t >

61=

>t >38 s

1.:

j >61= ( 3 8 )∖ =.1 ( 3 8 )    

6

² ::68∖ =.1 ( 1 88 )> ::68 ∖= . =98 ² ::94.41 n