Two cylindrical vessels of equal cross-sectional area of 2 m² contain water up to heights 10 m and 6 m, respec…

Question

Two cylindrical vessels of equal cross-sectional area of $2 \, \text{m}^2$ contain water up to heights $10 \, \text{m}$ and $6 \, \text{m}$ , respectively. If the vessels are connected at their bottom, then the work done by the force of gravity is: (Density of water is $10^3 \, \text{kg/m}^3$ and $g = 10 \, \text{m/s}^2$ )

A
$1 \times 10^5 \, \text{J}$
B
$4 \times 10^4 \, \text{J}$
C
$6 \times 10^4 \, \text{J}$
D
$8 \times 10^4 \, \text{J}$

Accepted Answer

D. $$8 	imes 10^4 \, 	ext{J}$$

Answer

A. $$1 	imes 10^5 \, 	ext{J}$$

Answer

B. $$4 	imes 10^4 \, 	ext{J}$$

Answer

C. $$6 	imes 10^4 \, 	ext{J}$$

Answer & step-by-step solution

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