Fluid MechanicsHard
Question
A block of steel of size 5 cm × 5 cm × 5 cm is weighed in water. If the relative density of steel is 7. Its apparent weight is :
Options
A.6 × 5 × 5 × 5 gf
B.4 × 4 × 4 × 7 gf
C.5 × 5 × 5 × 7 gf
D.4 × 4 × 4 × 6 gf
Solution
Wapp = mg − FB
Wapp = ρVg − ρwVg
= (ρ − ρw) Vg
= (7ρw − ρw) Vg = 6 ρw Vg
Wapp = ρVg − ρwVg
= (ρ − ρw) Vg
= (7ρw − ρw) Vg = 6 ρw Vg
Create a free account to view solution
View Solution FreeMore Fluid Mechanics Questions
On dipping a capillary of length 20 cm. in a liquid, the liquid rises in it upto a height of 8 cm. If the whole arrangem...A ball of mass m and radius r is released in a viscous liquid. The value of its terminal velocity is proportional to...An increases in pressure required to decreases the 200 litres volume of a liquid by 0.004% in container is : (Bulk modul...If the radius of two soap bubbles are ′a′ and ′4a′ respectively and the surface tension of the s...When charge is given to a soap bubble, it shows :-...