In a hydraulic press

PHYSICS · Multi-part · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids

Problem

In a hydraulic press, a worker applies a force of

300\,\text{N}

on a small piston of area

5.0\,\text{cm}^2

and moves it down by

20\,\text{cm}

. The large piston has an area of

400\,\text{cm}^2

and lifts a metal block. Because of friction, only

92\%

of the work done on the small piston appears as useful work in raising the block. (a) Calculate the total work done on the small piston. (b) Determine the rise of the large piston. (c) Find the weight of the metal block that can be lifted under these conditions.

Related theory

Energy Losses & Efficiency
Hydraulic Machines
Fluid Statics
Pascal's law
Fluids
Pressure in liquids
Fluid pressure and Pascal's law
Mechanical Properties of Fluids

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