An object with a mass of #3 kg# is revolving around a point at a distance of #4 m#. If the object is making revolutions at a frequency of #2 Hz#, what is the centripetal force acting on the object?

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Answer 1 · 2018-05-26T08:10:20

The centripetal force is #=1895N#

The centripetal force is

#F=mromega^2#

The mass of the object is

#m=3kg#

The radius of the circle is

#r=4m#

The frequency of rotation is

#f=2Hz#

The angular velocity is

#omega=2pif=2*pi*2=4pirads^-1#

Therefore,

the centripetal force is

#F=3*4*(4pi)^2=1895N#