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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 #8 Hz#, what is the centripetal force acting on the object?

Answer 1

Elena Albarran

The centripetal force is #=20213N#

Centripetal force is what

#F=mromega^2#

The mass of the object is #m=4kg#

The radius of the circle is #r=2m#

The frequency is #f=8Hz#

The angular velocity is #omega=2pif=2*pi*8=16pirads^-1#

Centripetal force is what

#F=4*2*(16pi)^2=20213N#

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Answer 2

Charles Aeschliman

The centripetal force acting on the object is 64 Newtons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.