Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
Depth of water= 6 cm = 0 .06 m.
Density of water = 1000 kgm-3.
Acceleration due to gravity = 10 ms-2.
We know pressure
P = h x p x g.
P = 0.06 x 1000 x 10 = 600 Nm-2= 600 Pa.
Area of base of cylindrical vessel = 300 cm2 = 300 x 10-4m2= 0.03 m2.
We know
Thrust = pressure x area.
Thrust =600 x 0.03 = 18 N.
So thrust acting on the base of the vessel is 18 N.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false :
The buoyant force depends on the nature of object immersed in the liquid
Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?
The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is
A plastic cube is released into the water. Will it sink or come to the surface of the water?
Complete the following sentence :
Pressure at a point inside the liquid is ...................... To its depth.
Two cylindrical vessels fitted with pistons A and B of area of cross-section 8 cm2 and 320 cm2 respectively are joined at their bottom by a tube and they are completely filled with water. When a mass of 4 kg is placed on piston A, Find:
- the pressure on piston A,
- the pressure on piston B, and
- the thrust on piston B.
A piece of wood if left under water comes to the surface. Explain the reason.
Pressure in a water pipe on the ground floor of a building is 100,000 Pa. Calculate the pressure in the water pipe on the first floor at a height of 3 m. [Density of water = 1000 kgm−3 ; g = 10 ms−2]
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
Higher Order Thinking Skill.
How does a fish manage to rise up and move down in water?
