Question

Write a relationship between the mechanical advantage (M.A.) and velocity ratio (V.R) of an ideal machine.

Answer 1

For an ideal machine,

M. A. = V. R.

This is because an ideal machine has 100 % efficiency and no energy is lost due to friction.

η = `"M. A."/"V. R." xx 100 %`

Therefore, when η = 100 %, mechanical advantage equals velocity ratio.