# Answer to Question #6250 in Mechanics | Relativity for Jen

Question #6250

(a) Suppose A= (5,0) and B=(0,12). write C1 =A+B in polar corrdinates (r,θ) . i got this covered. it should be (13,67.4 degrees north of east).

the problem i have here is

(b) C2=(6,45 degresss north of east). Write C2 in the forms of ( C, θc) and (Cx,Cy).

I thought (C,θc) is already given while (Cx,Cy) doesnt make sense to me. I learned that Cx=Ax+Bx which is 5 but it is given to be 6?

the problem i have here is

(b) C2=(6,45 degresss north of east). Write C2 in the forms of ( C, θc) and (Cx,Cy).

I thought (C,θc) is already given while (Cx,Cy) doesnt make sense to me. I learned that Cx=Ax+Bx which is 5 but it is given to be 6?

Expert's answer

Cx=Ax+Bx - this is the case (a) (C1 =A+B), but& in case of (b) C2 does not depend on A and B.

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