A) \[7.82\times {{10}^{7}}\,\,N/{{m}^{2}}\]
B) \[6.92\times {{10}^{5}}\,\,N/{{m}^{2}}\]
C) \[13.76\times {{10}^{5}}\,\,N/{{m}^{2}}\]
D) \[9.63\,\,N/{{m}^{2}}\]
Correct Answer: B
Solution :
Maximum mass of the car\[=3000\,\,kg\] Area of cross-section of the piston \[=4.25\times {{10}^{-2}}{{m}^{2}}\] The maximum pressure beared by the smaller piston is \[P=\frac{F}{A}=\frac{3000\times 9.8}{4.25\times {{10}^{-2}}}\] \[=6.92\times {{10}^{5}}\,\,N/{{m}^{2}}\]
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