A particle comes around a circle of radius 1m once. The time taken by it is 10sec. The average velocity of motion is
Correct answer: D. Zero
- A. 0.2πm/s
- B. 2πm/s
- C. 2m/s
- D. Zero
Explanation
When a particle completes one full circle, its total displacement is zero because it ends up back where it started. This means the average velocity, which is total displacement divided by total time taken, is also zero. Options A, B, and C are incorrect because they do not take into account the circular nature of the motion and the fact that the particle returns to its starting point.
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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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