An object with a mass of #5 kg# is hanging from an axle with a radius of #12 m#. If the wheel attached to the axle has a radius of #42 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Feb 25, 2017

Answer:

The force is #=14N#

Explanation:

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The load is #=5gN#

The radius of axle is #=12m#

The radius of wheel is #=42m#

The effort is #=EN#

Taking moments about the center of the axle

#5g*12=E*42#

#E=(12*5g)/42=1.43gN#

Force =1.43gN=14N