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

1 Answer
Apr 10, 2018

The force is F=24.5N

Explanation:

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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=9.8ms2

Taking moments about the center of the axle

F96=8g30

F=8g3096=24.5N

The force is F=24.5N