Displacement of an object in moving around a complete circle is _.
Correct answer: D. Zero
- A. 2πr
- B. 2r
- C. πr
- D. Zero
Explanation
When an object moves around a complete circle, it returns to its starting position. Therefore, the displacement of the object from its starting position is zero. This is because displacement is a vector quantity that measures the shortest distance between the starting point and the ending point, and in this case, the starting and ending points coincide.
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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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