ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Specialist Mathematics => Topic started by: wildareal on October 03, 2010, 03:39:19 pm

Title: Statics Question III
Post by: wildareal on October 03, 2010, 03:39:19 pm

Thanks +1

Title: Re: Statics Question III
Post by: wildareal on October 03, 2010, 03:46:31 pm

Hi Wildareal,

Using Cos Rule to find the angles of triangle 10, 12, 15.
Then make a Triangle of forces with 20kgwt going down and solve.

Title: Re: Statics Question III
Post by: letsride on October 03, 2010, 04:54:29 pm

Quote from: wildareal on October 03, 2010, 03:46:31 pm

Hi Wildareal,

Using Cos Rule to find the angles of triangle 10, 12, 15.
Then make a Triangle of forces with 20kgwt going down and solve.

you got it, haha

Title: Re: Statics Question III
Post by: Stroodle on October 03, 2010, 07:35:12 pm

You could also split the triangle down the middle, giving two right angled triangles.

Title: Re: Statics Question III
Post by: wildareal on October 03, 2010, 07:38:25 pm

Quote from: Stroodle on October 03, 2010, 07:35:12 pm

You could also split the triangle down the middle, giving two right angled triangles.

That's how the cos rule (or sin rule) works...I think?