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?

Question

1445 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-23T05:27:21

The force is $=19.6N$

www.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 $F=19.6N$

An object with a mass of 3 kg3 kg is hanging from an axle with a radius of 14 m14 m. If the wheel attached to the axle has a radius of 21 m21 m, how much force is needed to raise the object?