ANyone know how to draw a parallelogram/triangle to resolve force?

[mutineer123]

ANyone know how to draw a parallelogram/triangle to resolve force??

Homework Statement

http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s04_qp_2.pdf

question 1b

Homework Equations

The Attempt at a Solution

I drew a triangle using a scale of 1cm=1N. I drew (at least I think I did) a decent sketch with the help of the protractor and ruler. For the resultant length i Just connected the two ends of the 8N and 6N lengths(which gave me a triangle). I measured the resultant which gave me 5.1cm, which with my scale is 5.1N. But my answers way off. Am i doing it right?

 

[ehild]

See: http://www.vitutor.com/geometry/vec/adding_vectors.html

ehild

 

[mutineer123]

See: http://www.vitutor.com/geometry/vec/adding_vectors.html

ehild

I think my one was similar. Can you just sketch it out once, and tell me what you get? I think the mark scheme may be wrong.

 

[ehild]

You connected the wrong points. Make a parallelogram of the vectors, and show your drawing.

ehild

 

[mutineer123]

You connected the wrong points. Make a parallelogram of the vectors, and show your drawing.

ehild

Kk i used a parallelogram this time, and got 13N thanks.

 

[ehild]

Splendid! It was the difference of the vectors what you got before. ehild