|
|
|
|
|
Work in = Work out +
Friction “losses” |
|
|
|
|
|
Actual Mechanical Advanatge (MA) |
|
the ratio of output force (Fo) to
input force (Fi) |
|
Ideal Mechanical Advanatge (MI) |
|
the ratio of input displacement (si)
to output displacement (so) |
|
|
|
|
|
|
The ratio of output work to input work |
|
|
|
|
The ratio of output work to input work |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Wheel and axle |
|
belt drive |
|
wedge |
|
screw jack |
|
gears |
|