Calculate the average angular velocity and the average linear velocity of the tip of a 10 cm long second- hand of a watch.

1 answer

omega = 2 pi radians/60 seconds = pi/30 rad/s

v = omega * r = (pi/30)(0.10) m/s

(assuming that the person's wrist is not moving and that the earth is stationary in space whatever that means :)
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