An object with a mass of #8 kg# is hanging from an axle with a radius of #29 m#. If the wheel attached to the axle has a radius of #21 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Jul 16, 2017

Answer:

The force is #=108.3N#

Explanation:

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The load #L=(8g)N#

Radius of axle #r=29m#

Radius of wheel #R=21m#

Taking moments about the center of the axle

#F*R=L*r#

#F*21=8g*29#

#F=(8*g*29)/21=108.3N#

The force is #F=108.3N#