Answer:
Mechanical advantage = 4.9
Step-by-step explanation:
Given:
Effort required to lift the water is,
![\textrm{Effort}=200\ N](https://img.qammunity.org/2021/formulas/physics/middle-school/o4levslmmn3746vzailc7nhwkni21s6zd0.png)
Load of water that is lifted is,
![\textrm{Load}=980\ N](https://img.qammunity.org/2021/formulas/physics/middle-school/na3bitgj1o12954nzkaj2u28b9qqsqhves.png)
We know that, mechanical advantage of a machine is obtained by dividing the load by effort force.
Therefore, mechanical advantage is given as:
![MA=\frac{\textrm{Load}}{\textrm{Effort}}\\\\MA=(980)/(200)\\\\MA=4.9](https://img.qammunity.org/2021/formulas/physics/middle-school/e8l51d8z7a9amsuts68ly8mrldcodkp5ks.png)
Therefore, the mechanical advantage of the prince's machine is 4.9.