An object with a mass of #7 kg# is revolving around a point at a distance of #8 m#. If the object is making revolutions at a frequency of #9 Hz#, what is the centripetal force acting on the object?

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Answer 1 · 2017-09-09T05:21:39

The centripetal force is #=179.074kN#

The centripetal force is #F=mromega^2#

The mass is #m=7kg#

The radius is #r=8m#

The frequency is #f=9Hz#

The angular velocity is #omega=2pif=2pi*9=(18pi)rads^-1#

So,

The centripetal force is

#F=7*8*(18pi)^2=179074N=179.074kN#