sarahf2468
contestada

The 5.50 cm long second hand on a watch rotates smoothly. What is its angular velocity? What is the speed of the tip of the hand?

Respuesta :

Willchemistry
Angular velocity w = angle(radians) / time(sec) 

W = 2 π / 60

W = 0.105 rad/sec

V speed :

W * r  =  0.105 * 5.50

V speed = 0.5775 cm/sec

hope this helps!