A particle is moving in a circular path of radius r. The displacement after half a circle would be: (a) Zero (b) π r (c) 2 r (d) 2π r
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
The answer is (c) 2 r.
Explanation:
After half revolution
Distance travelled = X circumference= πr
Path length
Displacement = Final position- Initial Position
It comes out to be the diameter of the circle = 2 r.
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