Q.
A uniform tapering vessel shown in figure is filled with liquid of density $900\ kgm^{- 3}$. The force that acts on the base of the vessel due to liquid is (take g =$10\ ms^{- 2}$)
A) 3. 6 N
B) 7.2 N
C) 9. 0 N
D) 12. 0 N
Explanation
(b) Force on the base of the vessel
$=$ pressure $\times$area of the base
$= h\ \rho\ g \times A = 0.4 \times 900 \times 10 \times 2 \times 10^{- 3}$
$= 7.2$ N
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.