Assalamualaikum Wr.Wb. yth. Bapak ZulTan.
Baiko, ambo maetongnyoa:
Nan Boat, kan ka ilia kamudiak, 12 km. Kacepatan Sungai 3km/h dianggap = 0
km/h dek mahilia + 3 km/h, manyongsong - 3km/h.
13/4 h = 7/4 h
Vo = S/t= (2x12km)/(13/4 h)= 24 km / ( 7/4) h = 13,71 km/h
Kontroll t= S/V = 24 km /13,71 km/h = 1,75 h =
= 13/4 h = 1 h 45' = 1 hour 45 minutes
(q.e.d)
______________________________________________________
Nan absolut batua, nan co iko keoo!!!
Vo = S/t= (1x12km)/(13/4 h)= 12 km / ( 7/4) h = (13,71/2) km/h
= 6,86 km/h
Kontroll t= S/V = 12 km /(13,71/2) km/h = 12 km/ 6,86 km/h = 1,75 h =
= 13/4 h =
= 1 h 45'=
=1 hour 45 minutes
( q. e. d. = quod erat demonstrandum)
Jadi tampak2nyo, dianalisa dari jalan metongnyo, ambo salah manafsirkan jarak
tampuah 12km bukan sakali jalan, melainkan pai + baliak.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Soal nan kaduo:
Vo= 240/to [km/h] ; 20'= 1/3 h ; V1= 240/(to+ 1/3) [km/h]
Vo - V1 = 6 km/h => 240/to [km/h] - 240/(to + 1/3) [km/h] = 6 [km/h]
240.(to + 1/3) - 240.to = 6.to.(to+ 1/3)
240.{(to + 1/3) - to} = 6 to² + 2.to
240.{( + 1/3) - } = 6 to² + 2.to
80 = 6 to² + 2.to
0 = 6 to² + 2.to - 80
0 = 3 to² + 1.to - 40
Rumus Polynome pangkat 2 , terkenal dengan Rumus ABC
- b (+/-) SQR{ b² - 4.a.c}
to = _____________________________
(1/2) 2.a
-1 + SQR { 1² - 4.3.(-40)}
to = _____________________________
2.3
-1 + SQR { 1 + 480 }
to = ______________________
6
-1 + 21,93
to = _______________ = 3,488 = 3, 49 h
6
to yang kedua imaginer tak berlaku!
Jadi Vo yang berlaku adalah
Vo = So/to = 240/ 3,49 = 68,768 [km/h]
= 68,77 [km{h]
t1 = to + 20' = 3, 49 + 0,33333 = 3,823333 h
V1 = 240 /3,82 = 62,827 [km{h]
= 62,83 [km{h]
Yo pak ZulTan, Dozen itu memeng Absolut, tasarah inyo ka magiah ponten. Memang
disitulah banyak nan mambuek murik2 maupun mahasiswa2 manjadi frustasi, dek
bagageh, salah tuncik, salah mangarati, anggap enteng, nang hadong hepeng dek
wesel talaik dari sponsor, pacar sadang baganyi pulo.
Macam2 lah faktornyo.
Protes beko, tasingguang pulo paranakannyo, kononpulo kalau Dozen nan agak
Rasismus, balain kulik badan, balain agamo, sadang sakik pulo, mungkin sudah
kanai berang2 dek induak barehnyo.
Tibo ujian LISAN beko, datang pulo inyo, lah manggaletek lutuikko beko, dek
ujian lisan, harus manjawab..... koeh.
Rasailah, nan co iko ado juo pengalaman ambo disiko, apolai nan tukang bolos
pulo...... eiiii yai yaiiiii.
Ndak dima dima, tapi eloknyo ado juo, sayang nan elok itu umumnyo, saketek bana.
Labiah elok kuliah di Indo., bahasonyo samo, kuliknyo samo, agamonyo mungkin
samo ataupun mayoritas lah.
Sakitu sajolah ota ambo Pak ZulTan.
Ka manonton Filem di TV dulu sabanta.
Wassalam,
Muljadi Ali Basjah.
-------- Original-Nachricht --------
> Datum: Sat, 4 Aug 2012 15:05:21 +0000
> Von: "ZulTan" <zul_...@yahoo.com>
> An: "RantauNet@googlegroups.com" <RantauNet@googlegroups.com>
> Betreff: Re: [R@ntau-Net] OOT: Matematika 64 dan 65
>
> Wa'alaikummussalam wr. wb. Pak Muljadi Ali Basjah
>
> Jawaban nan partamo salah nampaknyo Pak, nan kaduo ampia bana.
>
> 68.80 jo 62.80
>
> Tarimo kasih Pak Mul lah sato lo mamaniang-maniangan utak.
>
> Salam,
> ZulTan, L, Bogor
>
>
> Action cures fear.
>
> -----Original Message-----
> From: "Muljadi Ali Basjah" <mulj...@gmx.de>
> Sender: rantaunet@googlegroups.com
> Date: Sat, 04 Aug 2012 10:29:16
> To: <rantaunet@googlegroups.com>
> Reply-To: rantaunet@googlegroups.com
> Subject: Re: [R@ntau-Net] OOT: Matematika 64 dan 65
>
> Assalamualaikum Wr.Wb. Bapak ZulTan.
>
>
> Di-Juruman jo Bulando juo baitu kabanyo.
> Kalu Anak2 urang Indonesia ataupun Juruman , nan nyakiyo ba angko rato2
> tinggi, kirin ka Indonesia, sikolah International, ataupun Sikolah Nagari
> Indonesia. Kudiannyo ratonyo tinngi, dan bisa masuak Perguruan Tinngi diEropa,
> nan Elitenyo.
>
> Wassalam,
> Muljadi Ali basjah
>
>
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> Vo boat= 2x12/(7/4) [km/h] = 13,71 [km/h]
>
> XXXXXXXXXXXXXXXXX
>
> Vo= 68,72 [km/h]
> Vi= 62,83 [km/h]
>
>
> -------- Original-Nachricht --------
> > Datum: Fri, 3 Aug 2012 21:24:23 -0700 (PDT)
> > Von: ZulTan <zul_...@yahoo.com>
> > An: RN <rantaunet@googlegroups.com>
> > Betreff: [R@ntau-Net] OOT: Matematika 64 dan 65
>
> > Assalamu'alaikum warahmatullaahi wabarakaatuhu,
> >
> > Sanak panyuko olah otak atau siapo pun nan punyo anak, kanakan, cucu,
> atau
> > adiak nan di kelas IX nan kini duduak di kelas RSBI atau SBI, cubolah
> > agiahan soal ko nan ambo dapek dari surang guru les sekolah swasta
> berstandard
> > internasional. Jadi sakolah ko, bukan lagi sakadar RINTISAN Sekolah
> > Bertaraf Internasional (RSBI).
> > Di sakolah ko uang asiang bisa masuak tanpa kesulitan komunikasi karena
> > full English. Bahkan babarapo anak Indonesia nan lahia/gadang di LN
> ndak
> > bisa baso Indonesia ado di siko. Anak-anak dibuliahkan ndak ikuik UN
> (dek
> > ndak mangarati B. Indonesia) dan hanyo mandapekkan ijazah dari sakolah
> tapi
> > dapek dipakai untuk malanjuikkan ka LN.
> >
> > Problem 1:
> > A boat travels 12 km upstream and back in 1 hour 45 minutes.
> > If the speed of the current is 3 km/h throughout, find the speed of the
> > boat in still water, giving your answer correct to 3 significant
> figures.
> >
> > Maliek soal nan lain, kota nan dipakai dalam soal pun bukan kota-kota di
> > nagari awak. Mungkin dek bukunyo barasa dari lua pulo.
> >
> > Problem 2:
> > A motorist makes a journey of 240 km from Singapore to Malacca to visit
> > his in-law at an average speed of X km/h. Write down an expression for
> the
> > number of hours taken for the journey. On his return jouney from
> Malacca to
> > Singapore, his average speed is reduced by 6 km/h due to heavy traffic
> at
> > the causeway. Write down an expression for the time taken for the
> return
> > journey. If the return journey takes 20 minutes longer, from an
> equation in
> > X and solve it to find the average speed for each journey, giving your
> > answer corret to two decimal places.
> >
> > Salamaik mancubo,
> >
> > Salam,
> > ZulTan, L, Bogor
> >
--
--
.
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