Question

If mechanical advantage of a machine is less than 1 , it is used to gain _____

Answer 1

1. Mechanical advantage is the ratio of load to effort or the amplification that a machines help us achieve.
2. $\mathrm{Mechanical}\mathrm{advantage}=\frac{\mathrm{load}}{\mathrm{effort}}$,it has no unit as two quantities are similar.
3. It is denoted by MA , which denotes what the machine does.
4. When $\mathrm{MA}<1$, the machine helps gain speed.

Hence, if mechanical advantage of a machine is less than 1 , it is used to gain speed.