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sarahf2468
sarahf2468 sarahf2468
  • 25-02-2016
  • Physics
Answered

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?

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 25-02-2016

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!

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