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Practice Questions

A force of 50 N is applied at an angle of 300°. Its components (Fx, Fy) are approximately…

A. (43.3 N, 25 N)
B. (25 N, 43.3 N)
C. (25 N, -43.3 N) ✓
D. (43.3 N, -25 N)
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nmdcat.online AA Physics
Jun 25, 2026

For the ship in the previous question, the direction of its resultant displacement is…

A. 37° North of East
B. 53° North of East ✓
C. 45° North of East
D. 30° North of East
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nmdcat.online AA Physics
Jun 25, 2026

A ship sails 3 km East and then 4 km North. The magnitude of its resultant displacement is…

A. 7 km
B. 1 km
C. 5 km ✓
D. 12 km
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nmdcat.online AA Physics
Jun 25, 2026

Two forces, F1 = (3i + 4j) N and F2 = (-3i – 4j) N, act on an object. The resultant force has a magnitude of…

A. 10 N
B. 14 N
C. 0 N ✓
D. 5 N
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nmdcat.online AA Physics
Jun 25, 2026

A vector points along the negative x-axis. The angle it makes with the positive x-axis is…

A. 0°
B. 90°
C. 180° ✓
D. 270°
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nmdcat.online AA Physics
Jun 25, 2026

The angle for the direction of a resultant vector is conventionally measured counter-clockwise from the…

A. positive y-axis
B. negative y-axis
C. positive x-axis ✓
D. negative x-axis
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nmdcat.online AA Physics
Jun 25, 2026

If the x-component of a vector is positive and the y-component is negative, the vector lies in the…

A. First Quadrant
B. Second Quadrant
C. Third Quadrant
D. Fourth Quadrant ✓
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nmdcat.online AA Physics
Jun 25, 2026

A force of 40 N acts at 45° to the horizontal. The magnitudes of its horizontal and vertical components are…

A. (20 N, 34.6 N)
B. (28.3 N, 28.3 N) ✓
C. (34.6 N, 20 N)
D. (40 N, 40 N)
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nmdcat.online AA Physics
Jun 25, 2026

The magnitude of the resultant vector from the previous question, R = (6i + 2j), is approximately…

A. 8.0 units
B. 4.0 units
C. 6.3 units ✓
D. 3.5 units
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nmdcat.online AA Physics
Jun 25, 2026

Given two vectors, A = (2i + 3j) and B = (4i – 1j), the resultant vector R = A + B is…

A. (6i + 4j)
B. (2i + 2j)
C. (6i + 2j) ✓
D. (-2i + 4j)
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nmdcat.online AA Physics
Jun 25, 2026
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