Fluid Mechanics Viscosity Question 218
Question: A triangular lamina of area A and height h is immersed in a liquid of density $ \rho $ in a vertical plane with its base on the surface of the liquid. The thrust on the lamina is
Options:
A)$ \frac{1}{2}A\rho gh $
B)$ \frac{1}{3}A\rho gh $
C)$ \frac{1}{6}A\rho gh $
D)$ \frac{2}{3}A\rho gh $
Show Answer
Answer:
Correct Answer: B
Solution:
Thrust on lamina = pressure at centroid × Area = $ \frac{h\rho g}{3}\times A $ =$ \frac{1}{3}A\rho gh. $
BETA
