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Force on a window of area 0.5 m^2 at depth 10 m in water (rho = 1000, g = 10) is
A50 N only
B5000 N only
C500 N only
D50000 N
Answer & Solution
Correct answer: D. 50000 N
1. Pressure at the window = 10 * 1000 * 10 = 100000 Pa.
2. Force on window = pressure * area = 100000 * 0.5.
3. = 50000 N.
4. So the force on the window is 50000 N.
_Source: Selina Concise Physics Class 9, Ch 4 Pressure in Fluids and Atmospheric Pressure (Mistral OCR'd PDF), section on numerical examples_
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