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ranxu6j3
 2 years ago
Excuse me, please
3 vectors (they are not 0), a=5 b=3
the angle between a and b is 60
to balance , c=?
ranxu6j3
 2 years ago
Excuse me, please 3 vectors (they are not 0), a=5 b=3 the angle between a and b is 60 to balance , c=?

This Question is Closed

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0@ParthKohli can you help?

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0No, I am not wellversed in vectors :(

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1Try putting a coordinate system on it, with a or b as one of the axes. Let's say b is the negative xaxis. Then you can write a as the sum of its x and ycomponents. I will make a drawing to explain...

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0thanks @ParthKohli , cuz there was nobody viewing, and I'm your fan, so I tried to ask you. that's alright, thanks for replying

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0thanks , @ZeHanz , I'll wait for your illustration.

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1Here it is: (try to get the lengths of a_x and a_y, the x and y components of a.

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1Once you have these values, you can add up all the xcomponents (there are 2). There is also only one ycomponent (that of a). To get c, you'll have to compensate in the opposite direction, so take the opposite values of the x and ycomponents. Hope this is clear enough ;)

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0cool how did you draw that? tks a lot, in your way that I'll get c=5.5, is it? but the answer is 7, am I misunderstanding or? sorry for being confused ,still your pic is very clear

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0oh sorry, wrong considering , give me a moment

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1I used Geogebra. Look it up at geogebra.org (it's free).

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0thank you very much, i was stupidly stuck, and thanks for telling me the app, i think it will be useful

ZeHanz
 2 years ago
Best ResponseYou've already chosen the best response.1Here's another drawing. The sum of the xcomponents is 5 + 2.5 = 7.5. The only ycomponent is 2.5√3. (there is a 306090triangle involved). So to compensate, c should go 5.5 to the right and 2.5√3 down: (lenght is indeed 7!)

ranxu6j3
 2 years ago
Best ResponseYou've already chosen the best response.0yeah i got 7 when i told you i got it, thank you very much sorry for having a wrong considering at first, i can't thank you enough for your patience and enthusiasm of answering me. i can imagine what's going on when you gave me first picture. thaks again
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