$\frac{75}{28\mathrm{.}75}$

$786$

What is the purpose of a simple machine?

to make task simpler

to make the work casier

What are the two origind simple machine?

the incline plane

the lever

What is the unit of force in the english system

Pounds

Mechanical Advantage $$ MA $=\frac{\text{s}\text{l}\text{o}\text{n}\text{d}\text{e}\text{d}\text{h}\text{e}\text{i}\text{g}\text{h}\text{t}}{\text{v}\text{e}\text{r}\text{t}\text{i}\text{c}\text{a}\text{l}\text{h}\text{e}\text{i}\text{g}\text{h}\text{t}}$

Sbanded heigh and the vertical height

$83\mathrm{.}7528\mathrm{.}75,=2\mathrm{.}9$

$80$ pounds $2\mathrm{.}9,=27\mathrm{.}6$ pounds

$100$ pounds $2\mathrm{.}9,=34\mathrm{.}5$ pounds

$A^2+B^2=C^2$

${22\mathrm{.}75}^2+B^2={83\mathrm{.}75}^2$

$]=c^2,{42}^2+{118}^2=c^2[2\mathrm{.}98$