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m1 vectors question

Basically...i've been stuck on this question for nearly half an hour...please help me.

Find the resultant of three horizontal forces with magnitudes and directions of 16N in the direction N60*W, 8N in the direction N30* and 11N in the direction SE.

BTW the * is means degrees.

Thanks
Reply 1
Avatar for Priyanka1992
Priyanka1992
OP
someone....anyone....i have a test on Tuesday!
Reply 2
Avatar for Swayum
Swayum
18
What does N60*W mean? Can you give it as a bearing or something instead? And you say Tuesday like it's tomorrow :shifty:.
Priyanka1992
Basically...i've been stuck on this question for nearly half an hour...please help me.

Find the resultant of three horizontal forces with magnitudes and directions of 16N in the direction N60*W, 8N in the direction N30* and 11N in the direction SE.

BTW the * is means degrees.

Thanks

Do you have to express it in terms of i and j?
Reply 4
Avatar for DaveJ
DaveJ
Swayum
What does N60*W mean? Can you give it as a bearing or something instead? And you say Tuesday like it's tomorrow :shifty:.



Yeah OP, do that. My textbook gives angles in that odd way loads, and I don't have a clue what it means.
Reply 5
Avatar for Priyanka1992
Priyanka1992
OP
Okay...N60*W is a bearing of 300*, so its direction is near the north west.
"Okay...N60*W is a bearing of 300*, so its direction is near the north west."

.......is actually a bearing of 60 degrees clockwise http://www.novahistory.org/PR-N60W.jpg.


See file for how to work it out. (i think)


priyanka, "...perhaps you should pay attention in class....lol" :smile:
maths.jpg185.5KB
Reply 7
Avatar for Priyanka1992
Priyanka1992
OP
Keith_Dave
"Okay...N60*W is a bearing of 300*, so its direction is near the north west."

.......is actually a bearing of 60 degrees clockwise http://www.novahistory.org/PR-N60W.jpg.


See file for how to work it out. (i think)


priyanka, "...perhaps you should pay attention in class....lol" :smile:



Isn't it anticlockwise?
Priyanka1992
Isn't it anticlockwise?


dunno. I don't do maths...:woo:
Reply 9
Avatar for Priyanka1992
Priyanka1992
OP
Keith_Dave
dunno. I don't do maths...:woo:


I am neg repping you for that.....:shifty:
Priyanka1992
I am neg repping you for that.....:shifty:


I'm negging you for this. :biggrin:

Touche...
is N60W North-West 60 deg?? If so the bearing can be calculated easily as 300.

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