An object with a mass of #7 kg# is hanging from an axle with a radius of #6 m#. If the wheel attached to the axle has a radius of #32 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Mar 1, 2017

Answer:

The force is #=12.86N#

Explanation:

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The load is #=7gN#

The radius of axle is #=6m#

The radius of wheel is #=32m#

The effort is #=Ekg#

Taking moments about the center of the axle

#7g*6=E*32#

#E=(42g)/32=1.31gN#

Force =1.31gN=12.86N