SAT Subject Physics Practice Question 553: Answer and Explanation
The equilibrant vector of a resultant vector is shown above. Which of the choices below represents the y component of the equilibrant vector?
A. Line A
B. Line B
C. Line C
D. Line D
E. Line E
Correct Answer: B
The correct answer is (B). The equilibrant vector is pointed into the third quadrant. The y component for a vector in the third quadrant also points into the third quadrant.