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Homework Help: Physics

Posted by Anna on Monday, May 3, 2010 at 12:21pm.

An athlete twirls a 1 kg hammer tied to the end of a 1.3 m rope in a horizontal circle the hammer moves at the rate of 1.0 rev/sec.
(a)what is the centripetal acceleration of the hammer?

(b) what is the tension in the rope?

• Physics - drwls, Monday, May 3, 2010 at 12:36pm

  (a) R * w^2
  (b) M*R*w^2
  
  where w = 2 pi radians/s
  M = 1.0 kg
  R = 1.3 m
  The answer will be in Newtons.
  
  You should be familiar with these formulas.
  

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