An object with a mass of #8 kg# is hanging from an axle with a radius of #30 m#. If the wheel attached to the axle has a radius of #96 m#, how much force must be applied to the wheel to keep the object from falling?

1 Answer
Apr 10, 2018

Answer:

The force is #F=24.5N#

Explanation:

www.odicis.org

The load is #L=8gN#

The radius of the axle is #r=30m#

The radius of the wheel is #R=96m#

The effort is #=FN#

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

Taking moments about the center of the axle

#F*96=8g*30#

#F=(8g*30)/96=24.5N#

The force is #F=24.5N#