Question

The physical quantities such as mechanical advantage and efficiency of machine has no units, but are pure numbers. Explain.​

Answer 1

Answer:

The physical quantities such as mechanical advantage and efficiency of machine has no units, but are pure numbers

see the attachment

Answer 2

Answer:

A simple machine is a mechanical device that makes our life easier. of physical quantities, the mechanical advantage is unit less ... The efficiency of a machine is 50 %.