Pulleys and Inclined Planes Quick Check
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A pulley system has a mechanical advantage of 3, and an object weighing 9 Newtons must be lifted 15 meters. How much force must be applied to lift the object? Use the following equation to find the answer:MA=Fo/Fi
3 N
A simple machine increases the distance that a force needs to be applied from 3 meters to 27 meters, and the work done is 216 Joules. How much force is applied?
8 N
How is the work energy theorem represented as an equation? Responses
W=ΔE
How can a simple fixed pulley make a job easier?
by changing the direction at which the force needs to be applied
How can you calculate the mechanical advantage a simple machine provides?
divide the output force by the input force
