A uniformly tapering vessel is filled with a liquid of density 900 kg/m3. The force that acts on the base of the vessel due to the liquid is (g=10ms−2)
A
3.6 N
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B
7.2 N
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C
9.0 N
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D
14.4 N
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Solution
The correct option is B
7.2 N
Force acting on the base F = P ×A = hdgA = 0.4 × 900 × 10 × 2 ×10−3=7.2 N