A particle starts from centre O toward A then moves along AB and stop at B. If R=100m ,then displacement of the particle is:
Correct answer: A. 100m
- A. 100m
- B. 100√2 m
- C. 100/√2 m
- D. None
Explanation
Assuming O is the center of a circle and AB is along the circumference of a circle of radius R (R = 100 meters), any point on that circumference. such as B, is 100 meters from the origin, (O).All that matters for displacement is how far the final point is on a direct line from the origin.Any point on the circumference of a circle is the "radius" distance from the origin.The displacement is 100 meters.Displacement is a vector quantity, so there should be a direction to that 100 meters..
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