An object with a mass of #5 kg# is hanging from an axle with a radius of #18 m#. If the wheel attached to the axle has a radius of #6 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
May 13, 2018

Answer:

The force is #F=147N#

Explanation:

www.odicis.org

The load is #L=5gN#

The radius of the axle is #r=18m#

The radius of the wheel is #R=6m#

The effort is #=FN#

The acceleration due to gravity is #g=9.8ms^-2#

Taking moments about the center of the axle

#F*6=5g*18#

#F=(5g*18)/6=147N#

The force is #F=147N#