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

25. A fixed-magnitude vector is rotated from 0° to 90° relative to the positive x-axis. Its x-component

A. Increases continuously
B. Decreases continuously to zero
✓
C. Remains constant
D. Becomes negative immediately

📝 Explanation

(V_x=Vcostheta). Cosine decreases from 1 to 0 over this range.

📖 Additional Information

  • Increases continuously
  • Decreases continuously to zero
  • Remains constant
  • Becomes negative immediately

(V_x=Vcostheta). Cosine decreases from 1 to 0 over this range.

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24. A vector has components 4 N and 3 N. If its x-component is doubled while its y-component remains unchanged the new magnitude is

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