An object with a mass of #7 kg# is hanging from an axle with a radius of #6 m#. If the wheel attached to the axle has a radius of #31 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
May 3, 2017

Answer:

The force is #=13.3N#

Explanation:

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The load L=(7g)N#

Radius of axle #r=6m#

Radius of wheel #R=31m#

Taking moments about the center of the axle

#F*R=L*r#

#F*31=7*g*6#

#F=(7*g*6)/31=13.3N#