A force of 204kN acts on the pump piston. What is the work done by this force in one piston stroke if it is 40 cm?

We express the work of the piston in one stroke by the formula:
A = F * S, where F is the force acting on the pump piston (F = 204 kN = 204 * 10 ^ 3 N), S is the movement of the piston in one stroke (S = 40 cm = 0.4 m).
Let’s calculate the work of the piston in one stroke:
A = F * S = (204 * 10 ^ 3) * 0.4 = 81,600 J = 81.6 * 10 ^ 3 J = 81.6 kJ.
Answer. The work of the piston in one stroke is 81.6 kJ.