Vector is quantity which:
Correct answer: C. Follow rules of vector addition
- A. Has direction
- B. Has magnitude
- C. Follow rules of vector addition
- D. Derived from time only
Explanation
All vectors follow rules of vector addition. They have both; magnitude and direction. There exist vector quantities which are not derived with respect to time (eg: area)
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Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
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