chem, help please
posted by Jon .
A 0.580kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. The velocity of the rock is 4.50 m/s. What is the centripetal force acting on the rock?
how do i find centripetal force??

Centripetal force = M V^2/R
M is the mass, etc.
The subject is called physics. 
A 0.580kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. The velocity of the rock is 4.50 m/s. What is the centripetal force acting on the rock?
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