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A cubical box is completely filled with mass m of a liquid and is given horizontal acceleration a as shown. Match the force due to fluid pressure on the faces of the cube with their appropriate values (assume zero pressure at minimum pressure)
  • a)
    force on face BFHD is mg/2
  • b)
    force on face CGHD is 
  • c)
    force on face ABFE is ma/2
  • d)
    force on face ACGE is ma/2
Correct answer is option 'A,B,C'. Can you explain this answer?
Verified Answer
A cubical box is completely filled with massmof a liquid and is given ...
Pressure varies with height ⇒ P = ρgh  
and is horizontal with acceleration ⇒ P = ρℓa  
So on (A) ρgh part is zero while average of ρax is
In (B) pℓa part is zero while average of pgx is
Similarly for other part.
The correct answers are: force on face ABFE is mg/2, force on face BFHD is mg/2, , force on face CGHD is 
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Most Upvoted Answer
A cubical box is completely filled with massmof a liquid and is given ...
Pressure varies with height ⇒ P = ρgh  
and is horizontal with acceleration ⇒ P = ρℓa  
So on (A) ρgh part is zero while average of ρax is
In (B) pℓa part is zero while average of pgx is
Similarly for other part.
The correct answers are: force on face ABFE is mg/2, force on face BFHD is mg/2, , force on face CGHD is 
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