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

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

An object with a mass of 2 kg2 kg is revolving around a point at a distance of 5 m5 m. If the object is making revolutions at a frequency of 7 Hz7 Hz, what is the centripetal force acting on the object?