AP EAMCET202017 Sep 2020Morning ShiftPhysicsMechanical Properties of FluidsActual
If a vessel containing a fluid of density ( ) upto height (h ) is accelerated vertically downwards with acceleration (a₀ ). Then, the pressure by fluid at the bottom of vessel is given by the equation ........ ( (p₀ ) denotes the atmospheric pressure and (g ) denotes the acceleration due to gravity).
Options
- A(p=p₀+ g h+ h a₀ )
- B(p=p₀+ g h )
- C(p=p₀+ h (g-a₀ ) )
- D(p=p₀- g h )
Correct answer
C. (p=p₀+ h (g-a₀ ) )
Step-by-step solution
When a vessel containing a fluid of density ( ) upto height (h ) is accelerated downwards with acceleration (a₀ ), then net gravitational acceleration acting on the fluid (g^ =g-a₀ ) ...(i) Hence, the pressure by the fluid at the bottom of vessel is given as (p=p₀+ g^ h=p₀+ (g-a₀ ) h [From Eq. (i)] )