Advertisements
Advertisements
Question
Find the thrust required to exert a pressure of 50000 pascals on an area of 0.05 m2 ?
Solution
Pressure = Force / Area
Force = Pressure × Area
= 50,000 x 0.05 = 2,500 Newton
APPEARS IN
RELATED QUESTIONS
Toricelli’s barometer used mercury. Pascal duplicated it using French wine of density 984 kg m–3. Determine the height of the wine column for normal atmospheric pressure.
Calculate the pressure exerted on a surface of 0.5 m2 by a thrust of 100 kgf.
If someone presses a pointed needle against your skin, you are hurt. But if someone presses a rod against your skin with the same force, you easily tolerate. Explain.
Multiple Choice Question.
A hydraulic lift is designed to lift heavy objects of maximum mass 2000 kg. The area of cross-section of piston carrying the load is 2.25 × 10-2 m2. What is the maximum pressure the smaller piston would have to bear?
An air bubble of radius 0.2 mm is situated just below the water surface. Calculate the gauge pressure. Surface tension of water = 7.2 × 10−2 N/m.
A brick is kept in three different ways on a table as shown in figure. The pressure exerted by the brick on the table will be
![]() |
![]() |
![]() |
(A) | (B) | (C) |
In petrol bunks, in what unit is tire pressure measured?
The shape and size of the solids do not easily change.
Pressure is a scalar quantity because ______.
- it is the ratio of force to area and both force and area are vectors.
- it is the ratio of the magnitude of the force to area.
- it is the ratio of the component of the force normal to the area.
- it does not depend on the size of the area chosen.
Iceberg floats in water with part of it submerged. What is the fraction of the volume of iceberg submerged if the density of ice is ρi = 0.917 g cm–3?