Advertisements
Advertisements
Question
In a hydraulic lift, the input piston had surface area 30 cm2 and the output piston has surface area of 1500 cm2. If a force of 25 N is applied to the input piston, calculate weight/force on output piston.
Advertisements
Solution
Given:
A1 = 30 cm2 = 3 × 10−3 m2
A2 = 1500 cm2 = 0.15 m2,
F1 = 25 N
To find:
Weight on output piston.
Solution:
Using Pascal's law,
`"F"_1/"A"_1="F"_2/"A"_2`
∴ The force on the output piston,
F2 = `("F"_1 "A"_2)/"A"_1=(25 xx 0.15)/(3xx10^-3)`
= 25 × 50
= 1250 N
∴ The weight/force on the output piston is 1250 N.
APPEARS IN
RELATED QUESTIONS
Explain why Hydrostatic pressure is a scalar quantity even though the pressure is force divided by area.
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.
Two vessels have the same base area but different shapes. The first vessel takes twice the volume of water that the second vessel requires to fill up to a particular common height. Is the force exerted by the water on the base of the vessel the same in the two cases? If so, why do the vessels filled with water to that same height give different readings on a weighing scale?
A man exerts same pressure on the ground whether he is standing or he is lying.
The unit of pressure is .........
The pressure and thrust are related as
How is the thrust related to pressure?
A gum bottle rests on its base. If it is placed upside down, how does the pressure change?
Find the thrust required to exert a pressure of 50000 pascals on an area of 0.05 m2 ?
The base of a container measures 15 cm × 20 cm. It is placed on a table top. If the weight of the container is 60 N, what is the pressure exerted by the container on the table top?
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.
A beaker containing a liquid is kept inside a big closed jar. If the air inside the jar is continuously pumped out, the pressure in the liquid near the bottom of the liquid will
Consider the statement given below and choose the correct option.
Assertion: Sharp knives are used to cut the vegetables.
Reason: Sharp edges exert more pressure.
An empty plastic bottle closed with an airtight stopper is pushed down into a bucket filled with water. As the bottle is pushed down, there is an increasing force on the bottom. This is because
The total force exerted by a body normal to the surface is called ______.
If the same force is made to act on a larger area, the pressure ______.
At higher altitudes, atmospheric pressure is ______.
Pressure is directly proportional to the area of contact.
Explain why the cutting instruments are sharpened.
Cooking in a place located at a higher altitude is difficult. Why?
Give reasons why:
a single nail pricking the body is painful when compared to lying on a bed of nails.
Give reasons why:
cutting edges of knives and axes are sharpened.
Intermolecular forces are stronger in ______.
The pressure in mines is ______ than the sea level.
Hot air is ______ dense than ordinary air.
The shape and size of the solids do not easily change.
Assertion (A): Air gets thinner with increasing altitude.
Reason (R): The atmospheric pressure increases as we go up in mountains.
Assertion (A): Wide wooden sleepers are kept below railway lines to reduce pressure on the railway tracks and prevent them from sinking into the ground.
Reason (R): Pressure is directly proportional to the area in which it is acting.
