An object with a mass of $4 kg$ is revolving around a point at a distance of $2 m$ . 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 · 2018-04-18T09:51:23

The centripetal force is $=28503.4N$

The centripetal force is

$F=mromega^2$

The mass of the object is

$m=4kg$

The radius of the circle is

$r=2m$

The frequency of rotation is

$f=9Hz$

The angular velocity is

$omega=2pif=2*pi*9=19pirads^-1$

Therefore,

the centripetal force is

$F=4*2*(19pi)^2=28503.4N$

An object with a mass of 4 kg4 kg is revolving around a point at a distance of 2 m2 m. If the object is making revolutions at a frequency of 9 Hz9 Hz, what is the centripetal force acting on the object?