What is the frequency of revolution of the minute and second hands of a watch, if the length of the minute

What is the frequency of revolution of the minute and second hands of a watch, if the length of the minute hand is 3 cm, and the second hand is 2 cm? Determine their angular velocity. What would be the linear velocities of the arrowheads if they moved uniformly?

Solution:
n1 = 0.00028 s˄-1
n2 = 0.0167 s˄-1
T1 = 60 min = 3600 s
T2 = 60 s v1 = 2pR /
T = 2 * 3.14 * 0.03: 3600 = 0.000052 m / s
v2 = 2nR / T = 6.28 * 0.02: 60 = 0.002 m / s
w1 = 2p / T = 6.28 / 3600 = 0.0017 rad / s
w2 = 6.28 / 60 = 0.105 rad / s
Answer: 0.00028 cm; 0.0167 cM: 0.0017 rad / s; 0.105 raa / s: 0.000052 m / s: 0.002 m / s