The problem involves finding the components Cx and Cy of a vector C in the xy-plane, given that it is perpendicular to vector A and has a scalar product of 19 with vector B. The vectors A and B are defined with specific components.
Some participants have provided hints and suggestions for writing out the equations based on the dot product conditions. There is an acknowledgment of the challenges faced in solving the equations, and some participants express frustration while others encourage showing work to clarify reasoning.
Participants note the difficulty in transitioning from one equation to another and question the mathematical approach being taken. There is a sense of uncertainty regarding the correctness of the values obtained during the calculations.
snaamlsa said:thanks for the hint but it doesn't help -_-
I'm really tired of trying to solve it and I'm kinda near giving up that's why I ended up here guys so that you could help me, so please do help! I want an answer with explanation :)
this is what I got recently --> Cx = 1.34 Cy and then? I don't know what to do '~'
fzero said:You should show your work so we know where you got that from. But, that looks almost like it came from A.C = 0. Does the B.C =19 condition give another useful relationship between Cx and Cy?
snaamlsa said:oh sorry, so here is my work:
A.C = AxCx + AyCy
5.1Cx - 6.7Cy = 0
Cx = 1.34 Cy
and here we're finished with A.C and will work on B.C = 19 with the value of Cx = 1.34 Cy . . . but how?!
fzero said:Write out B.C in components and you'll get a 2nd equation for Cx and Cy. You'll have 2 equations for 2 unknowns and can combine the equations to solve for both unknowns.
snaamlsa said:-3.2 (1.34) + 7.2 Cy = 19
fzero said:should be -3.2 (1.34 Cy ) + 7.2 Cy = 19