an abject is moving in a circular path of radius r. what is the displacement, when
1) it completes half circle
2) it completes full circle
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when it completes the full circle it's displacement will be same.
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The distance will be equal to the circumference of the circle, while the displacement will be zero.
Distance=total length he travels, which is equal to 2*3.14*r.
Displacement= shortest length between his starting point and ending point,and since he is travelling on a circular path, and when he completes his one complete circular revolution, his starting point and ending point are same. So the displacement will be ZERO.
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