An object with a mass of #6 kg# is hanging from an axle with a radius of #9 m#. If the wheel attached to the axle has a radius of #6 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Aug 16, 2017

Answer:

The force is #=88.2N#

Explanation:

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The load is #L=6gN#

The radius of the axle is #r=9m#

The radius of the wheel is #R=6m#

The effort is #=FN#

Taking moments about the center of the axle

#F*6=6g*9#

#F=6g*9/6=88.2N#

The force is #F=88.2N#