Physics Help Please. How to find the resultant vector?
If you need to do this by vector decomposition, just assume one of the vectors lies along the +x axis (or stated more pedantically, choose a coordinate system where the 16m vector defines the x axis), then the other vector makes an angle of 145 degrees measured counterclockwise with the +x axis take components x component first vector =16m y component first vector =0 x component second vector = 17cos 145=-13.9m y component second vector =17sin145=9.75 resultant vector has x component =16-13.9=2.1 and y component 9.75 resultant magnitude =sqrt[xcomonent^2+y component^2] resultant =sqrt[2.1^2+9.75^2]=10.