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# Equals the output work divided by the input work?

Updated: 9/25/2023

TomonnoCheeksgp8705

Lvl 1
8y ago

All machines lose some of the input force applied to them as a result of friction and other forces. The efficiency of a machine refers to how much of the input work is converted to output work by the machine. You can find the efficiency of a machine by dividing the output work by the input work. Because the output work will always be smaller than input work, efficiency will always fall somewhere between 0 and 1, with 1 being a machine that has as much output as input work (not possible in the real world) and 0 being a machine that is totally useless because none of the input work is converted to output work.

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Q: Equals the output work divided by the input work?
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### Why is the output work always less than the input work for a real machine?

because output work is input work divided by two

efficiency.

### How do you find the mechanical efficiency of a pulley?

you have to do: work (output) divided by work (input) = F x d (output) divided by F x d (input)

-3/-45

### What is the definition of mechanical efficiency?

Output work divided by input work

### What is the work output of machine divided by the work input called?

That is called the efficiency.

### All simple machines ideally work on the principle that?

ANSWER: work input equals work output

### If the output work of a simple machine equals the input work the machine is said to have efficiency.?

In that case, the efficiency is said to be 1 - or equivalently, 100%.

### How do you calculate the mechanical efficiency of a machine?

Work output divided by Work input Times 100

### What is a comparison of a machine's work output and work input?

Output is always greater than input. The output is multiplied from input.

### What is a a comparison of a machines work output with the works input that is mechanical?

Output power divided by input power, for a machine, is called the machine's efficiency. It need not be mechanical energy.

### Type of machine in which work input equals work output?

Any machine that is 100% efficient. (None exist.)