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प्रश्न
A particle is moving in a circular path of radius r. The displacement after half a circle would be :
पर्याय
0
`pir`
2r
`2pir`
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उत्तर
2r
Displacement is the difference between the final and initial position of a body. It is a vector quantity and is independent of the path taken. So, for the movement of half of a circle, the displacement is 2r, where r is the radius of the circular path.
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