1.

A machine gun fires \[n\] bullets per second and the mass of each bullet is m. If speed of bullets is u, then force exerted on the machine gun will be

A.  \[mng\]              
B.         \[mn\upsilon \]  
C.  \[mn\upsilon g\]           
D.         \[\frac{mn\upsilon }{g}\]
Answer» C.  \[mn\upsilon g\]           


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