[sunshineangel]

If I'm trying to figure out work and I am given efficiency how does that factor into the equation when I already know the weight, gravity, and change in height.

[Capuchin]

The efficiency simply multiplies the total energy. A process that releases 24Joules, but extracting that energy is only 50% efficient, then the actual energy useful for work is just 24*0.5 = 12J.

Ask if you have further questions! :D

[sunshineangel]

Okay then if you have the actual work as being 12J than is ideal work 24J? And is that the same thing as actual and ideal mechanical advantage?

[Capuchin]

Sort of, yes, Actual mechanical advantage takes things into account such as bearing friction and air resistance etc. Ideal mechanical advantage ignores these (it is "ideal")

[sunshineangel]

That makes total sense, thanks you have helped on what started as a very frustrating project.