Question

Anyone can help me with this problemIf Vector A^ = (7.00i -9.00J ) units, VectorB^ = (-9.00i + 4.00J ) units, and Vector C^ = (25.0i + 20.0J ) units, determine a and b such that aA^ + bB^ +C^ = 0.
a =?
b =?

Answer 1

for A^ = (7.00i -9.00J )
|A| = sqrt(49 + 81) = sqrt(130)

for B^ = (-9.00i + 4.00J )
|B| sqrt (81 + 16) = sqrt(97)

for C^ = (25.0i + 20.0J )
|C| = sqrt(625+400) = sqrt (1025)

a sqrt(130) + b sqrt(97) + sqrt (1025) = 0

then you will get a value of a and b

Answer 2

I did it as you showed it on above, but i got the answer wrong. How would I find a and b?

Answer 3

you got it???

Answer 4

I dont know how to find for a and b?

Answer 5

Would you tell me how do I find?

Answer 6

Now, I got it!

Answer 7

Thanks for your help?

Answer 8

congrats! welcome . two thumbs for you! ^^

Answer 9

Did u get the answer for a and b too? What did you get it if you got the answer?

Answer 10

yes...., do you know?