Question

The larger piston of hydraulic lift is 30cm in diameter. What is the pressure required to lift a car of mass 2250kg​

Answer 1

Answer:

to give way. phrase. If an object that is supporting something gives way, it breaks or collapses, so that it can no longer support that thing.

Answer 2

Pressure required is 321.4 kPa.

Given - Diameter and mass

Find - Pressure

Solution - Pressure is calculated by the formula-

Pressure = weight/area

Weight = mass*Acceleration due to gravity

Weight = 2250*10

Weight = 22500 N

Area = π*radius²

Radius = diameter/2

Radius = 30/2

Radius = 15 cm

As we know, 1 m = 100 cm

15 cm = 0.15 m

Pressure = 22500/π*0.15²

Pressure = 22500/0.07

Pressure = 321428.6 Pa

As we know, 1000 Pa = 1 kPa

321428.6 Pa = 321.4 kPa

Hence, pressure required is 321.4 kPa.

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