m) The Velocity Ratio (VR) of a lever is the ratio of the distance moved by the effort to the distance moved by the load.

m) The Velocity Ratio (VR) of a lever is the ratio of the distance moved by the effort to the distance moved by the load.

$$VR = \frac{\text{Distance moved by effort}}{\text{Distance moved by load}}$$

Reasons:

• The VR is a theoretical value for a machine, meaning it does not account for energy losses due to friction.
• For a lever, the VR can also be expressed as the ratio of the effort arm to the load arm. It indicates the mechanical advantage a lever could provide in an ideal scenario.