An object with a mass of #1 kg# is hanging from an axle with a radius of #16 m#. If the wheel attached to the axle has a radius of #8 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Apr 25, 2017

Answer:

The force is #=19.6N#

Explanation:

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The load L=(1g)N#

Radius of axle #r=16m#

Radius of wheel #R=8m#

Taking moments about the center of the axle

#F*R=L*r#

#F*8=1*g*16#

The force is

#F=(1*g*16)/8=2g=19.6N#