The dimension of velocity are __________?
Correct answer: D. LT^-1
- A. LT
- B. LMT
- C. LMT^-1
- D. LT^-1
Explanation
Velocity is displacement divided by time, so its dimensions are length/time, written LT^-1. Students often choose LMT^-1 by including mass, but mass is not involved in the definition of velocity.
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About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
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