A vector has an x component of -5.51 units and a y component of +9.52 units.The angle between the positive direction of the vector and the positive direction of the x axis is
A)125º
B)60º
C)120º
D)150º
E)-60º

Question

Quizplus · Accepted Answer

The angle θ between the vector and the positive x-axis can be found using the tangent function: tan(θ) = y/x. Here, y = 9.52 and x = -5.51. Calculating the arctan(9.52 / -5.51) gives an angle in the second quadrant (since the x-component is negative and the y-component is positive), which corresponds to 120º.

A Vector Has an X Component of -5