If the length of the second's hand in a stop clock is 3 cm the angular velocity and linear velocity of the tip is

Options

A. 0.2047 rad / sec., 0.0314 m / sec
B. 0.2547 rad / sec., 0.314 m/ sec
C. 0.1472 rad / sec., 0.06314 m/ sec
D. 0.1047 rad / sec., 0.00314 m / sec

Answer

D

Explanation

`omega = (2pi)/T = (2pi)/60 = 0.1047` rad/s
`v = romega = 0.1047 xx 3 xx 10^(-2) = 0.00314` m/s