it has to do with vectors
its an online HW assignment and i dont understand why i got it wrong
here is the question:
The two vectors 
and 
in Fig. 3-30 have equal magnitudes of 14.4 m and the angles are θ1 = 33° and θ2 = 107°. Find (a) the x component and (b) the y component of their vector sum 
, © the magnitude of , and (d) the angle makes with the positive direction of the x axis.
my answers:
A. 7.867 m
B. 21.614 m
C. 23.001 m
D. 70 degrees
to fine Rx i found the components Ax+Bx and Ry = Ay+By then to get R i did the pythagorean theorem and to find Theta i did inverse Tan (Ry/Rx).
its bugging me cause i dont see where i went wrong
when youre dealing with vector magnitude i think it is just the absolute value, i got the same y component, but my x component i just did absolute values and got 16.29, i am not sure though… is this Wiley physics? Could be incorrect significant figures
yes its wiley
here is the solution and it makes not sense, i dont think its even the same problem as given
http://edugen.wiley.com/edugen/shared/assignment/test/qsolution.uni?itemid=c03q_1_17
what # is it in the book?
And I second the sig figs notion. Wiley is a huge cock.
Is Eric the teacher? He’s the best.
its chapter 3 #17 in the book but i just looked at the book and its not the same as the problem given online but yet the answer for online is the answer for the book??
here is the online problem
http://edugen.wiley.com/edugen/shared/assignment/test/qview.uni?id=quest363815entrance1&selected_question=quest363815&operation=take-question
It’s #19 in the 7th edition. 