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
How does the density of a body and that of a liquid determine whether the body will float or sink into that liquid?
What is meant by pressure? State its S.I. unit.
State whether pressure is a scalar or vector?
A dam has broader walls at the bottom than at the top. Explain.
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.
Why is a force needed to keep a block of wood inside water?
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from the jar is pumped out? Explain your answer.
Is thrust a scalar or vector quantity?
