d. A hydraulic jack is used to lift a car
of mass 1032 kg. The lift piston
has a radius of 25 cm. What is the
pressure exerted on the piston? Given,
acceleration due to gravity is 9.8 m/s?
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PragyaTbia
08.12.2018
Physics
Secondary School
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A hydraulic automobile lift is designed to lift cars with a maximum mass of 3000 kg. The area of cross section of the piston carrying the load is 425 cm². What maximum pressure would the smaller piston have to bear?
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abhi178
abhi178 Genius
It is given that ,
Maximum mass of a car that can be lifted, m = 3000 kg
Area of cross section of piston carrying the load , A= 452 cm²
= 0.0452 m²
Maximum force exerted by the car due to its weight (F) = mg
= 3000kg × 9.8m/s²
= 29400 kgm/s²
now maximum pressure = maximum force/area
= 29400/0.0452
= 6.504 × 10^5 N/m²
Therefore the maximum pressure on the smaller piston is 6.504 × 105Pa.( plz mark me Brainlist)