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

Answer 1

Leo Abeyta

The centripetal force is #=108328.8N#

The centripetal force is

#F= mr omega^2#

the mass of the object is #m=7kg#

radius #=8m#

the angular velocity is #omega=7*2pirads^-1#

The centripetal force is

#=7*8*(14pi)^2#

#=108328.8N#

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Answer 2

Julia Aguilar

Centripetal force = (mass × angular velocity² × radius)
Angular velocity = 2π × frequency
Calculate angular velocity, then substitute into the centripetal force formula.

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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.