In $1.0 s e c o n d$ , a particle goes from point A to point B, moving in a semicircle of radius $1.0 m$ , the magnitude of the average velocity is

3.14 m / s

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2.0 m / s

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1.0 m / s

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0 m / s

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Solution

The correct option is B $2.0 m / s$
$D i s p l a c e m e n t = D i a m e t e r = 2 r$

$| A v e r a g e v e l o c i t y | = \frac{| D i s p l a c e m e n t |}{T i m e} = \frac{2 r}{t} = \frac{2}{1} = 2 m / s$

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