Question

A rectangular tank of 6 m long, 2 m broad and 2 m deep is full of water, the thrust acting on the bottom of the tank is:

• A. $23.52\times {10}^{4}N$
• B. $23.512N$
• C. $11.76\times {10}^{4}N$
• D. $3.92\times {10}^{4}N$

Answer 1

The correct option is A $23.52\times {10}^{4}N$

volume of tank = $6\times 2\times 2$=24 $c{m}^3$

$F_{(}thrust)$ = $\rho gh\times area$ ( as force = pressure (area) )

= $1000\times 9.8\times 24$ ( as area (height) = volume)

=$23.52\times {10}^{4}N$

so option (A) would be correct