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Mechanical advantage is a measure of leverage, essentially and = distance moved at input end / distance moved at output end, but the work done ( force* distance ) at each end is the same except there will be the inevitable friction losses inbetween,
The efficiency of a machine is work done at output / work done at input and can never exceed 100 %
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When is the mechanical advantage greater than one?
The IMA of a machine is greater than 1 whenever the output force is greater than the input force.
Is 42.53 greater than or less than 42.35?
42.53 is greater than 42.35 because you look at the number to the right of the decimal, and which ever is greater, is the answer
What does a mechanical advantages less than 1 equal to 1and greater than 1 tell you about the machine?
It tells me that the machine is imaginary and does not exist.
Can a simple machine efficiency ever be greater than 100 percent?
No, due to the fact machines loose energy due to heat/thermal energy. you will always loose some amount of energy.
When is one third greater than one half?
i don't think it ever is
