In \( 1.0 \mathrm{~s} \), a particle goes from point \( A \) to point \( B \), moving in a semic...

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In \( 1.0 \mathrm{~s} \), a particle goes from point \( A \) to point \( B \), moving in a semicircle of radius \( 1.0 \mathrm{~m} \) (see figure). The magnitude of the average velocity is
[IIT-JEE 1999; AMU PMT 2009]
(a) \( 3.14 \mathrm{~m} / \mathrm{s} \)
(b) \( 2.0 \mathrm{~m} / \mathrm{s} \)
(c) \( 1.0 \mathrm{~m} / \mathrm{s} \)
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