Question

How is velocity ratio of wheel and axle calculated​

Answer 1

VR =
`(Radius of the wheel)/(Radius of the axle)`

Step-by-step explanation:

Velocity ratio (VR) of a machine is a term that compares the distance moved by effort put into the machine to the distance moved by the load.

A wheel and axle is a device for lifting of a load through a height. It is made up of two circular parts called wheel and axle. Its velocity ratio (VR) can be determined by:

VR =
`(Radius of the wheel)/(Radius of the axle)`

For a practical wheel and axle, the diameter of the wheel is greater than the diameter of the axle.