Which one of the following statements about speed and velocity is correct?
- A. Speed and velocity both are vector quantities.
- B. Speed and velocity both are scalar quantities.
- C. Speed is vector quantity and velocity is scalar quantity.
- D. Speed is scalar quantity and velocity is vector quantity. ✓
Correct Answer: D. Speed is scalar quantity and velocity is vector quantity.
Explanation
Speed is a scalar quantity because it only has magnitude, while velocity is a vector quantity because it has both magnitude and direction.
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