Posted by Q77 on .
if A=12x  16y and B=  24x + 10y,what is the magnitude of the vecror C=2AB?
Please check out the necessity to solve them and thank

Physica 
Elena,
A(x) =12 , B(x) =  24,
C(x)=(2AB)(x)=(2•12(24)) =48
A(y) = 16, B(y) = 10.
C(y)=(2AB)(y)=(2•(16) 10) =  42
Magnitude of C=2AB =sqrt{48²+(42)²} =63.78