In 1.0 s, a particle goes from point A to point B, moving in a semicircle of radius 1.0 m (see figure). 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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Zero

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Solution

The correct option is B
2.0 m/s

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

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