predrag007 Posted on: Feb 6 2012, 04:16 PM





Group: Članovi
Posts: 3
Joined: 5-January 12
Member No.: 1.833


Hvala puno!!!!!!!
  Forum: Matematika · Post Preview: #114511 · Replies: 2 · Views: 6.902

predrag007 Posted on: Feb 6 2012, 01:21 PM





Group: Članovi
Posts: 3
Joined: 5-January 12
Member No.: 1.833


Zadatak ide ovako:
Ako je x+y+z=1,x^2+y^2+z^2=1 i x^3+y^3+z^3=1 dokazati da je xyz=0.
Hvala unapred.
  Forum: Matematika · Post Preview: #114509 · Replies: 2 · Views: 6.902

predrag007 Posted on: Jan 5 2012, 05:24 PM





Group: Članovi
Posts: 3
Joined: 5-January 12
Member No.: 1.833


stvarno mi je potrebna pomoc oko ovog zadatka pokusavao sam da ga resim ali ne ide excl.gif

Tela masa m1 i m2 nalaze se na horizontalnoj podlozi tako da telo m1 lezi na telu m2.Na telo m1 pocinje da deluje sila F pod uglom od 30 stepeni prema horizontali.Odrediti ubrzanja tela ako je koeficient trenja medju telima y1 a izmedju donjeg tela i podloge y2

Hvala unapred!
  Forum: Fizika · Post Preview: #114410 · Replies: 0 · Views: 1.996


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