Answer:
The force needs to be applied on the 1 square meter piston to lift the machine is 200 N.
Step-by-step explanation:
Given that,
Force,

Area,

We need to find the force needs to be applied on the 1 square meter piston to lift the machine. We know that the pressure at every point is same due to Pascal's law such that :

So, the force needs to be applied on the 1 square meter piston to lift the machine is 200 N. Hence, this is the required solution.