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The base of a cylindrical vessel measures 300 cm2. Water (density = 1000 kg m-3) is poured into it upto a depth of 6 cm. Calculate the pressure and thrust of water on the base. (g = 10 m s-2)

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Question

The base of a cylindrical vessel measures 300 cm2. Water (density = 1000 kg m-3) is poured into it up to a depth of 6 cm. Calculate the pressure and thrust of water on the base. (g = 10 m s-2)
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Solution

Depth of water= 6 cm = 0 .06 m.

Density of water = 1000 kgm-3.
Acceleration due to gravity = 10 ms-2.

We know pressure
P = h x p x g.
P = 0.06 x 1000 x 10 = 600 Nm-2= 600 Pa.

Area of base of cylindrical vessel = 300 cm2 = 300 x 10-4m2= 0.03 m2.

We know
Thrust = pressure x area.
Thrust =600 x 0.03 = 18 N.
So thrust acting on the base of the vessel is 18 N.

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Chapter 4: Fluids - Exercise 1 [Page 157]

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Frank Physics [English] Class 9 ICSE
Chapter 4 Fluids
Exercise 1 | Q 14 | Page 157

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