A) \[12.25\text{ }kg/s\]
B) \[17.5\text{ }kg/s\]
C) \[7.35\text{ }kg/s\]
D) \[5.2\text{ }kg/s\]
Correct Answer: C
Solution :
Here \[v\frac{dm}{dt}=m\,(4.9+9.8)=(14.7)\,m,\] \[v=2\,km/s,\,\,\,\,m=1000\] \[2000\frac{dm}{dt}=14.7\times 1000=\frac{dm}{dt}=\frac{14.7}{2}=7.35\,kg/s\]You need to login to perform this action.
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