nmdcat.online
AA Physics Addition of Vectors (Rectangular Components
nmdcat.online August 7, 2026

42. A vector of fixed magnitude is rotated from 0° to 180° relative to the positive x-axis. At which angle is its x-component zero?

A. 0°
B. 45°
C. 90°
✓
D. 180°

📝 Explanation

(V_x=Vcostheta). The x-component is zero when (costheta=0), which occurs at 90°.

📖 Additional Information

  • 0°
  • 45°
  • 90°
  • 180°

(V_x=Vcostheta). The x-component is zero when (costheta=0), which occurs at 90°.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

41. During a laboratory investigation a force is resolved into perpendicular components of 9 N and 12 N. The magnitude of the force is

Next Question

43. A vector has magnitude 20 N and an x-component of -12 N. If the vector lies in the second quadrant its y-component is

Back to All Questions

🔗 Related MCQs

45. A vector has magnitude 25 N and an x-component of 7 N. If it points into quadrant I its y-component is
August 7, 2026
46. Three displacement vectors have components ((4,3)) m ((6,-3)) m and ((-5,4)) m. The resultant components are
August 7, 2026
47. For the vectors in Question 46 the magnitude of the resultant is
August 7, 2026
48. Two vectors have components ((10,10)) N and ((-6,2)) N. The direction of their resultant relative to the positive x-axis is closest to
August 7, 2026
49. A vector has components (V_x=Vcostheta) and (V_y=Vsintheta). If its angle changes from 30° to 60° without changing its magnitude which statement is correct?
August 7, 2026

Categories

View all →