In 1.0 sec. a particle goes from point A to point B moving in a semicircle of radius 1.0 m. The magnitude of average velocity is : (JEE '99] (A) 3.14 m/sec (B) 2.0 m/sec (C) 1.0 m/sec (D) zero

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( begin{aligned} text { avg velocity } &=frac{text { To tal displaut }}{text { To tal time }} &=frac{2 m}{pm sec } &=2 m / sec (B) end{aligned} )

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