physics
posted by javane .
An athlete whirls in a 7.10kg 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

physics 
Anonymous
a. 51.2 m/s^2
b. 358.4 N 
physics 
jeff
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 
.
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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