An object with a mass of #2 kg# is revolving around a point at a distance of #4 m#. If the object is making revolutions at a frequency of #3 Hz#, what is the centripetal force acting on the object?
Centripetal force is given as:
We can evaluate the velocity knowing that the object moves of a (linear) distance equal to:
and that the frequency (representing the number of turns in one second) is
So the total liner distance will be:
Using this information into the expression for centripetal force (1) we get: