The angular velocity of a wheel is 70 rad

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The angular velocity of a wheel is $70\, rad/sec$. If the radius of the wheel is $0.5\, m$, then linear velocity of the wheel is ....... $m/sec$

A

$70$

B

$35$

C

$30 $

D

$20 $

The angular velocity of a wheel is $70\, rad/sec$. If the radius of the wheel is $0.5\, m$, then linear velocity of the wheel is ....... $m/sec$

$v = r\omega = 0.5 \times 70 = 35\,m/s$