An object with a mass of #2 kg# is hanging from an axle with a radius of #2 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 15, 2017

Answer:

The force is #=4.9N#

Explanation:

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The load #=(2g)N#

Radius of axle #r=2m#

Radius of wheel #R=8m#

Taking moments about the center of the axle

#F*8=2*g*2#

#F=(2*g*2)/8=4.9N#