An object with a mass of #7 kg# is hanging from an axle with a radius of #33 m#. If the wheel attached to the axle has a radius of #69 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Narad T.
May 6, 2017

The force is #=32.8N#

Explanation:

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The load L=(7g)N#

Radius of axle #r=33m#

Radius of wheel #R=69m#

Taking moments about the center of the axle

#F*R=L*r#

#F*69=7*g*33#

#F=(7*g*33)/69=32.8N#

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