An object with a mass of 3 kg is hanging from an axle with a radius of 14 m. If the wheel attached to the axle has a radius of 21 m, how much force is needed to raise the object?

1 Answer
Apr 23, 2018

The force is =19.6N

Explanation:

www.odicis.orgwww.odicis.org

The load is L=3gN

The radius of the axle is r=14m

The radius of the wheel is R=21m

The effort is =FN

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

Taking moments about the center of the axle

F*21=3g*14

F=(3g*14)/2=19.6N

The force is F=19.6N