Posted by Q6 on .
IF A = 2x+3y and B = x+y, then the angle between the resultant A+B and the positive directio of xaxis is

Physica 
Elena,
Ax=2, Bx=  1 => (A+B)x=21=1
Ay=3, By= 1 => (A+B)y=3+1=4
tanα=(A+B)y/(A+B)x =4/1=4,
α =arctan4=76º