A) \[50{{m}^{2}}/{{s}^{2}}\]
B) \[50.5{{m}^{2}}/{{s}^{2}}\]
C) \[51{{m}^{2}}/{{s}^{2}}\]
D) \[52{{m}^{2}}/{{s}^{2}}\]
Correct Answer: A
Solution :
[a] If \[{{v}_{2}}\]is the required speed then \[{{A}_{1}}{{v}_{1}}={{A}_{2}}{{v}_{2}}\] or \[{{v}_{1}}=\frac{{{A}_{2}}}{{{A}_{1}}}{{v}_{2}}=0.1{{v}_{2}}\] ...(i) From Bernoulli's equation, we have \[Pa+\frac{1}{2}\rho v_{1}^{2}+\rho g(3-0.525)=Pa+\frac{1}{2}\rho v_{2}^{2}+0\] ...(ii) After solving above equations, we get \[v_{2}^{2}=50{{m}^{2}}/{{s}^{2}}\]
You need to login to perform this action.
You will be redirected in
3 sec
