An object with a mass of #8# #kg# is hanging from an axle with a radius of #12# #m#. If the wheel attached to the axle has a radius of #63# #m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Jun 11, 2017

Answer:

The force is #=14.93N#

Explanation:

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The load L=(8g)N#

Radius of axle #r=12m#

Radius of wheel #R=63m#

Taking moments about the center of the axle

#F*R=L*r#

#F*63=8*g*12#

#F=(8*g*12)/63=14.93N#

The force is #=14.93N#