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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Specialist Mathematics => Topic started by: fredrick on August 25, 2008, 07:35:37 pm

Title: Forces
Post by: fredrick on August 25, 2008, 07:35:37 pm

A particle ofmass 7 kg hangs from a point O by a light string. It is pulled aside by a force PN that makes an angle of 95 degrees with downward verticle and rest in equilibrum with the string inclined at an angle of 53 degrees to the verticle. Find P.

Could u also include the diagram, cheers!

Title: Re: Forces
Post by: Pandemonium on August 25, 2008, 08:08:47 pm

i think it's one of those ones where it's like two strings attached to one mass.
eg.

--------------------------
\                      /
 \                   /
  \                /
   \             /
    \          /
      \      /
        \  /
         O
         |  7kg
         V

etc. i cbf.

Title: Re: Forces
Post by: fredrick on August 25, 2008, 08:14:42 pm

it says a light string, where did you get 2 from?

Title: Re: Forces
Post by: shinny on August 25, 2008, 08:30:57 pm

(http://www.freewebtown.com/shinjitsu/Forces.JPG)

Hope that's right =\ I'm not too good with purely worded dynamics questions, they get a bit confusing sometimes.

Title: Re: Forces
Post by: fredrick on August 25, 2008, 08:43:16 pm

Great thats right thanks!