A) 600 W
B) 300 W
C) 150 W
D) 75 W
Correct Answer: A
Solution :
Power of gun\[=\frac{Total\,\,KE\,\,of\,\,fired\,\,bullet}{Time}\] \[=\frac{n\times \frac{1}{2}m{{v}^{2}}}{t}[\because \,\,360\,\,km/h=100\,\,m/s]\] \[=\frac{360}{60}\times \frac{1}{2}\times 2\times {{10}^{-2}}\times {{(100)}^{2}}\] \[=600\,\,W\]
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