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Homework Help: physics

Posted by javane on Friday, November 26, 2010 at 1:50pm.

An athlete whirls in a 7.10-kg hammer tied to the end of a 1.2 m chain in a horizontal circle, as shown in the figure below. The hammer makes one revolution in 1.0 s.

(a) What is the centripetal acceleration of the hammer?


(b) What is the tension in the chain?

• physics - Writeacher, Friday, November 26, 2010 at 1:52pm

  http://www.jiskha.com/display.cgi?id=1290754007
  

• physics - Anonymous, Friday, December 9, 2011 at 5:47pm

  a. 51.2 m/s^2
  b. 358.4 N
  

• physics - jeff, Thursday, October 11, 2012 at 9:30am

  a 600 kg hammer of pile driver is lifted 2 meters above a piling head. what is the change in potential energy if the hammer is released, what will its speed at the instant it strikes the piling?
  

• physics - -.-, Monday, February 18, 2013 at 8:38pm

  i come here to know the process of getting the answer. not for the answer or to discover additional questions k thx
  

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