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Practice Questions

The angle of the velocity vector from the previous question, with respect to the positive x-axis, is approximately…

A. 127° ✓
B. 143°
C. 53°
D. 37°
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nmdcat.online AA Physics
Jun 25, 2026

A velocity vector has components (-30 m/s, +40 m/s). Its magnitude is…

A. 70 m/s
B. 10 m/s
C. 50 m/s ✓
D. 1200 m/s
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nmdcat.online AA Physics
Jun 25, 2026

The components of a vector are given by Vx = Vcosθ and Vy = Vsinθ. This is true only if θ is the angle the vector makes with the…

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

Three forces F1=(2i+3j), F2=(-4i+2j), F3=(2i-5j) act on a body. The body is in…

A. equilibrium ✓
B. uniform acceleration
C. non-uniform acceleration
D. rotational motion
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nmdcat.online AA Physics
Jun 25, 2026

A force F has a magnitude of 40 N. Its component along an axis at 120° to it is…

A. 20 N
B. -20 N ✓
C. 34.6 N
D. -34.6 N
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nmdcat.online AA Physics
Jun 25, 2026

If the sum of two vectors is perpendicular to their difference, the two vectors must…

A. be perpendicular
B. have the same magnitude ✓
C. be parallel
D. have different magnitudes
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nmdcat.online AA Physics
Jun 25, 2026

A vector has an x-component of -25 units and a y-component of 45 units. The tangent of its reference angle is…

A. 25/45
B. -0.555555556
C. 45/25 ✓
D. -1.8
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nmdcat.online AA Physics
Jun 25, 2026

The y-component of the resultant of the two forces in the previous question is…

A. 0 N
B. 50 N
C. 100 N ✓
D. 200 N
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nmdcat.online AA Physics
Jun 25, 2026

The x-component of the resultant of F1 = 100 N at 30° and F2 = 100 N at 150° is…

A. 0 N ✓
B. 100 N
C. 173.2 N
D. 200 N
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nmdcat.online AA Physics
Jun 25, 2026

The direction of the resultant force in the previous question is approximately…

A. 127° ✓
B. 143°
C. 37°
D. 53°
Read More Details about this Mcq:
nmdcat.online AA Physics
Jun 25, 2026
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