An object with a mass of #18 kg# is hanging from an axle with a radius of #16 cm#. If the wheel attached to the axle has a radius of #22 cm#, how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-03-05T14:31:41

The force is #=128.3N#

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The load is #=18gN#

Taking moments about the center of the axle

#18g*0.16=E*0.22#

#E=(18g*0.16)/0.22#

#=128.3N#