An object with a mass of #18 kg# is hanging from an axle with a radius of #15 cm#. If the wheel attached to the axle has a radius of #60 cm#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Jul 5, 2017

Answer:

The force is #=44.1N#

Explanation:

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The load #L=(18g)N#

Radius of axle #r=0.15m#

Radius of wheel #R=0.6m#

Taking moments about the center of the axle

#F*R=L*r#

#F*0.6=18*g*0.15#

#F=(18*g*0.15)/0.6=44.1N#

The force is #F=44.1N#