Technical

Relation Between Efficiency, Mechanical Advantages and Velocity Ratio of a Lifting Machine:

Relation Between Efficiency, Mechanical Advantages and Velocity Ratio of a Lifting Machine:

It is important relation of a lifting machine, which throws light on its            mechanism. Consider a lifting machine.

Let      W        =          Load lifted by the machine

P          =          Effort required to lift the load,

y          =          Distance moved by the effort, in lifting the load, and

x          =          Distance moved by the load.

We know that

We also know that

Input of a machine the         =          Effort applied  Distance through Which

Effort has moved.

=          P  y

And Output of a machine    =          Load lifted  Distance through which the

Load has been lifted

=          W  x