A particle is moving with a constant speed $v$ in a circle. What is the magnitude of average velocity after half rotation
A particle is moving with a constant speed $v$ in a circle. What is the magnitude of average velocity after half rotation
- A
$2\,v$
- B
$2\,\frac{v}{\pi }$
- C
$\frac{v}{2}$
- D
$\frac{v}{{2\pi }}$
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$Assertion$ : When a particle moves in a circle with a uniform speed, its velocity and acceleration both changes.
$Reason$ : The centripetal acceleration in circular motion is dependent on angular velocity of the body.
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$Reason$ : The centripetal acceleration in circular motion is dependent on angular velocity of the body.
- [AIIMS 2010]
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