Advertisements
Advertisements
प्रश्न
A block of iron of mass 7.5 kg and of dimensions 12 cm × 8 cm × 10 cm is kept on a table top on its base of side 12 cm × 8 cm.
Calculate:
- Thrust and
- Pressure exerted on the table top
Take 1 kgf = 10 N.
Advertisements
उत्तर
1 kgf = 10 N
∴ g = 10 ms-2
1) Thrust is
F = mg
= 7.5 kg × 10
= 75 N
2) Pressure is force per area.
∴ P = `"F"/"A"_"base"`
= `75/(12 xx 10^-2 xx 8 xx 10^-2)`
∴ P = 7812.5 Pa
APPEARS IN
संबंधित प्रश्न
The density of aluminium is 2.7 g cm-3 and that of brass 8.4 g cm’3. The correct statement is
Explain the meaning of the statement
‘Relative density of aluminium is 2.7’.
What physical quantity is measured in bar?
State whether pressure is a scalar or vector?
A dam has broader walls at the bottom than at the top. Explain.
The pressure P1 at a certain depth in river water and P2 at the same depth in sea water are related as :
In what direction and at what point does the buoyant force on a body due to a liquid act?
It is easier to lift a heavy stone under water than in air. Explain.
Is pressure a vector quantity?
Define atmospheric pressure diving suits. Does a diving suit create buoyancy?
