A) \[60\operatorname{N}{{\operatorname{m}}^{-2}}\]
B) \[180\operatorname{N}{{\operatorname{m}}^{-2}}\]
C) \[7500\operatorname{N}{{\operatorname{m}}^{-2}}\]
D) \[12500\operatorname{N}{{\operatorname{m}}^{-2}}\]
Correct Answer: C
Solution :
Pressure difference \[{{P}_{2}}-{{P}_{1}}=\frac{1}{2}\rho \left( v_{2}^{2}-v_{1}^{2} \right)\] \[=\frac{1}{2}\times 1.2\left( {{(150)}^{2}}-{{(100)}^{2}} \right)\] \[=\frac{1}{2}\times 1.2(22500-10000)\] \[=7500\,N{{m}^{-2}}\]You need to login to perform this action.
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