Physics
Fluid-Mechanics
Easy
Question
In figure, block A hangs by a cord from spring balance D and it submerged in a liquid C contained in a beaker B. The mass of the beaker is 1 kg. The mass of the liquid is 1.5 kq. Balance D reads 7.5 kg. The volume of block A is 0.003 m3. The mass per unit volume of the liquid is
The correct answer is:
7.5 g = 1 g+1.5 g + Downward reaction force of block
or 5g =|Downward reaction force|
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