Shaft of a motor rotates at a constant angular velocity of 3000 rpm . radians it has turned through

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3-2.Motion in Plane

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Shaft of a motor rotates at a constant angular velocity of $3000\ rpm$. The radians it has turned through in $1\ s$ is

A$2 \,\pi$

B$30 \,\pi$

C$100 \,\pi$

D$3000 \,\pi$

Solution

$Angular \,speed = 3000\,rpm \, = 50\,rps\, $
$= 50 \times 2\pi \,rad/\sec \,= 100\pi \,rad/\sec $

Standard 11

Physics

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