Question

A hydraulic press has a input cylinder of 2.5 cm diameter and an output cylinder
of 15 cm diameter. Assuming 100% efficiency, find the force on the output piston
if a force of 5 kgf is applied on the input piston.

Answer 1

Answer:

Weight on the ram F=mg=1000×10=10000

Using Pascal's law

A

F

=constant where A=πD

2

∴

(15)

2

10000

=

(1.5)

2

F

p

⟹F

p

=100 N =10 kgf

Thus, force required on plunger is 10 kgf