Question

1. Vector B is multiplied by the scalar 921.5. What angle does the new vector make with the x-axis?

A. 22°
B. 33°
C. 49.5°
D. 57°
2. Vector C is multiplied by the scalar −22. What angle does the new vector make with the y-axis?
A. 19°
B. 44°
C. 9.6°
D. 22°
E. 68°
3. Vectors B and C are shown in the coordinate plane. Vector D is given by D= B - C. What is the approximate magnitude of D?
A. 6.6
B. 9.2
C. 5.3
D. 3.2
E. 8.0

Answer 1

#1 is actually 33 because I’m assuming the angle doesn’t change just because the vector line gets longer

Explanation: I took this question on physics test and picked 49.5 and I got it wrong