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Module 1-Fluid Definition, Properties and Fluid Statics

A door in a tank in the form of quadrant of a cylinder of 1.5 m radius and 8 m wide. Calculate the resultant force on the door and its location.

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Data:-

Radius R=1.5 m

Width = 8 m

To find:-

Resultant Force (FR)=?

location θ=?

HINT:-

FR=F2x+F2y

θ=tan1(FyFx)

Solution:

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a) Horizontal component (Fx)

Fx=WwAF

Here, F=1.52=0.75m

A=1.5×8=12m2

Ww=9810N/m2

Fx=9810×12]times0.75

=88.29×103N

b) Vertical component (Fy)

Fy=Ww× cls area of ABC× width of door

=Ww×π4×1.52×8

138.685×103N

Now,

Resultant force R=F2x+F2y=(88.29×103)2+(138.685×103)2

=164.68×103N

θ=tan1FyFx=57.51

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