Question
Question: A cylinder of mass m and density r hanging from a string is lowered into a vessel of cross-sectional...
A cylinder of mass m and density r hanging from a string is lowered into a vessel of cross-sectional area s containing a liquid of density s (<r) until it is fully immersed. The increase in pressure at the bottom of the vessel is –
A
B
smg
C
D
Zero
Answer
Explanation
Solution
Upthrust in cylinder = sg
From newton’s third law, force exerted by the cylinder on the
liquid is also rg
\ Increase in pressure =