Login

Search the forums now!

Welcome, Guest. Please login or register.

November 01, 2025, 04:34:12 pm
Pages: [1]   Go Down

Author Topic: MAXIMUM WEIGHT  (Read 1874 times)  Share 

0 Members and 1 Guest are viewing this topic.

Zebra

  • Victorian
  • Forum Leader
  • ****
  • Posts: 541
  • Get to work!
  • Respect: +8
MAXIMUM WEIGHT
« on: November 10, 2011, 10:49:42 am »
0
2x10 =40 T.T FAIL LOL

hey guys! umm are they any of you who DIDN'T use lami's theorem like myself?

i resolved the vertical forces right

T1 x sin (60) + T2 x cos (30 ) = m x g
we knew T2 = (T1)xsquare root of 3

so i subbed it in and worked out m which turned out to be 40 kg LOL
Logged
2010:
Mathematical Methods CAS 3/4 [41->45.8]

2011:
English Second Language 3/4 [46->47.1], Chemistry 3/4 [42->45.6], Specialist Maths 3/4 [38->49.2], LOTE [33->40.9], Biology 3/4 [41->42]

aggregate: 195.9
2011 ATAR: 99.25

2012-2015: Bachelor of Pharmacy (Honours)

trinh

  • Guest
Re: MAXIMUM WEIGHT
« Reply #1 on: November 10, 2011, 11:02:09 am »
0
So the actual answer is 20 kg?
Logged

Zebra

  • Victorian
  • Forum Leader
  • ****
  • Posts: 541
  • Get to work!
  • Respect: +8
Re: MAXIMUM WEIGHT
« Reply #2 on: November 10, 2011, 11:05:52 am »
0
yep
Logged
2010:
Mathematical Methods CAS 3/4 [41->45.8]

2011:
English Second Language 3/4 [46->47.1], Chemistry 3/4 [42->45.6], Specialist Maths 3/4 [38->49.2], LOTE [33->40.9], Biology 3/4 [41->42]

aggregate: 195.9
2011 ATAR: 99.25

2012-2015: Bachelor of Pharmacy (Honours)

dc302

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1031
  • Respect: +53
  • School: Melbourne High School
  • School Grad Year: 2009
Re: MAXIMUM WEIGHT
« Reply #3 on: November 10, 2011, 11:08:38 am »
0
Dw, that'll only cost 1 mark.
Logged
2012-2015 - Doctor of Medicine (MD) @ UniMelb
2010-2011 - Bachelor of Science (BSc) majoring in Pure Mathematics @ UniMelb
2009 - VCE [99.70] -- Eng [43] - Methods [44] - Chem [44] - JapSL [45] - Spesh [45] - MUEP Jap [5.5]

Zebra

  • Victorian
  • Forum Leader
  • ****
  • Posts: 541
  • Get to work!
  • Respect: +8
Re: MAXIMUM WEIGHT
« Reply #4 on: November 10, 2011, 11:17:14 am »
0
oh really. even though i used different(or WRONG..) method :P?
Logged
2010:
Mathematical Methods CAS 3/4 [41->45.8]

2011:
English Second Language 3/4 [46->47.1], Chemistry 3/4 [42->45.6], Specialist Maths 3/4 [38->49.2], LOTE [33->40.9], Biology 3/4 [41->42]

aggregate: 195.9
2011 ATAR: 99.25

2012-2015: Bachelor of Pharmacy (Honours)

dc302

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1031
  • Respect: +53
  • School: Melbourne High School
  • School Grad Year: 2009
Re: MAXIMUM WEIGHT
« Reply #5 on: November 10, 2011, 11:36:17 am »
0
You used the wrong method? Then... I dunno :P
Logged
2012-2015 - Doctor of Medicine (MD) @ UniMelb
2010-2011 - Bachelor of Science (BSc) majoring in Pure Mathematics @ UniMelb
2009 - VCE [99.70] -- Eng [43] - Methods [44] - Chem [44] - JapSL [45] - Spesh [45] - MUEP Jap [5.5]

acinod

  • Victorian
  • Forum Leader
  • ****
  • Posts: 631
  • Honour: +100
  • Respect: +96
Re: MAXIMUM WEIGHT
« Reply #6 on: November 10, 2011, 11:50:58 am »
0
Well least you didn't get m=1kg!
Yeah I used lami's theorem and that's probably why I screwed up because I had to times the 0.5 in the denominator to the numerator which was 1 on the otherside. Unfortunately my mind told me 0.5x1=2 and not only that I said g=49 which altogether gave me the ridiculous answer of 1...
Logged
2015: Working Living The Dream
2012-14: BCom (Actuarial Studies/Finance) @ UniMelb
2011: English [41] | Mathematical Methods CAS [45] | Specialist Mathematics [43] | Chemistry [45] | Physics [42]
2010: Chinese Second Language [35]
ATAR: 99.35

“If you can't explain it simply, you don't understand it well enough."
-Albert Einstein

Milkshake

  • Victorian
  • Trendsetter
  • **
  • Posts: 164
  • Respect: +1
Re: MAXIMUM WEIGHT
« Reply #7 on: November 10, 2011, 11:54:25 am »
0
I did 196/g = 20N.
FML.
Logged

david10d

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 385
  • Respect: +17
Re: MAXIMUM WEIGHT
« Reply #8 on: November 10, 2011, 11:54:33 am »
0
will they accept 196/g KG?
« Last Edit: November 10, 2011, 12:29:59 pm by david10d »
Logged
2012: University of Melbourne - Bachelor of Commerce

Natters

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 346
  • Respect: +1
  • School: Mow
Re: MAXIMUM WEIGHT
« Reply #9 on: November 10, 2011, 12:49:58 pm »
0
well your meant to assume that g is 9.8 so im not sure
but i promised myself i wouldnt get into this shit :D

but does anyone think that was easy as fuck??????
one of the questions was like:
show that
(2x2+3)/(x2+1)=2+1/(x2+1)

i mean, what
i thought it was going to be hardddd
Logged

kenny_

  • Victorian
  • Trailblazer
  • *
  • Posts: 42
  • Respect: 0
Re: MAXIMUM WEIGHT
« Reply #10 on: November 10, 2011, 01:14:04 pm »
0
I resolved forces in i and j direction =/. Is the method wrong or something?
Logged

A-i-d-a-n-K

  • Victorian
  • Trailblazer
  • *
  • Posts: 34
  • Respect: +1
  • School: Caulfield Grammar School
  • School Grad Year: 2011
Re: MAXIMUM WEIGHT
« Reply #11 on: November 10, 2011, 01:56:30 pm »
0
Quote from: Natters on November 10, 2011, 12:49:58 pm
well your meant to assume that g is 9.8 so im not sure
but i promised myself i wouldnt get into this shit :D

but does anyone think that was easy as fuck??????
one of the questions was like:
show that
(2x2+3)/(x2+1)=2+1/(x2+1)

i mean, what
i thought it was going to be hardddd

Yeah it sucks, people will be differentiated by silly mistakes instead of knowledge :/ Hopefully tomorrow is harder....but not too hard!
Logged
2010: Methods (50)
2011: English [40+] 47.14| Chemistry [47+]46.3| Specialist [45+] 51.83| Physics [48+] 46.87| German [lol] 42.8!
UMAT: 100th
ATAR 99.80
2012: Med / Engineering (Melbourne or Monash?)

"In the face of adversity, we must construct additional pylons."

baws

  • Victorian
  • Adventurer
  • *
  • Posts: 7
  • I have nothing to declare but my genius~Oscar Wild
  • Respect: -6
Re: MAXIMUM WEIGHT
« Reply #12 on: November 10, 2011, 02:56:27 pm »
0
Quote from: A-i-d-a-n-K on November 10, 2011, 01:56:30 pm
Quote from: Natters on November 10, 2011, 12:49:58 pm
well your meant to assume that g is 9.8 so im not sure
but i promised myself i wouldnt get into this shit :D

but does anyone think that was easy as fuck??????
one of the questions was like:
show that
(2x2+3)/(x2+1)=2+1/(x2+1)

i mean, what
i thought it was going to be hardddd

Yeah it sucks, people will be differentiated by silly mistakes instead of knowledge :/ Hopefully tomorrow is harder....but not too hard!

No, let it rain hell down upon us.
Logged
2010: Mathematical Methods [50], Latin [50]
2011: Specialist [50?], Physics [50?], Chemistry [50?], English [50?], MUEP Mathematics [5.5]

Predicted ATAR:100.00?

AleksIlia

  • Victorian
  • Forum Regular
  • **
  • Posts: 73
  • Respect: 0
Re: MAXIMUM WEIGHT
« Reply #13 on: November 10, 2011, 02:58:49 pm »
0
Yeah I resolved too, it's a perfectly fine method and it's within the study design so dw
Logged
Pages: [1]   Go Up