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anonymous
 one year ago
Find the magnitude & direction of the vector JK given points J(1,0) & K(2,3).
anonymous
 one year ago
Find the magnitude & direction of the vector JK given points J(1,0) & K(2,3).

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0First we need to find the vector in <x,y> form Subtract the corresponding coordinates (tail  head) x = 2  1 = 3 y = 3  0 = 3 the vector JK is <3, 3> now you will use the formula sqrt(x^2 + y^2) to get the magnitude to get the direction, use arctan(y/x). The angle is in Q2, so you'll have to add 180 degrees

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\large u=<a,b>\qquad \begin{cases} magnitude\implies \sqrt{a^2+b^2}\\ direction\implies tan^{1}\left( \frac{b}{a} \right) \end{cases}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait im kinda confused

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.0where are you stuck?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0nevermind i got it thanks
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