An object with a mass of #2 kg# is revolving around a point at a distance of #5 m#. If the object is making revolutions at a frequency of #7 Hz#, what is the centripetal force acting on the object?

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Answer 1 · 2017-11-03T08:45:44

The centripetal force is #=19.34kN#

The centripetal force is given by the formula

#F=mv^2/r=mr omega^2#

The mass of the object is #m=2kg#

The radius is #r=5m#

The frequency is #f=7Hz#

The angular velocity is #omega=2pif=2*7*pi=14pirads^-1#

The centripetal force is

#F=2*5*(14pi)^2=19344.4N=19.34kN#