Which one of the following is the vector quantity?
Correct answer: A. Acceleration
- A. Acceleration
- B. Power
- C. Density
- D. Volume
Explanation
Acceleration is considered a vector quantity because it involves both magnitude and direction. Acceleration is the rate of change of velocity, and velocity is a vector quantity. When an object undergoes acceleration, it is experiencing a change in its velocity, and this change includes both a change in speed (magnitude) and a change in direction.
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About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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