A) 550 N
B) 50 N
C) 250 N
D) 250 dyne
Correct Answer: B
Solution :
\[u= velocity of bullet\] \[\frac{dm}{dt}= Mass thrown per second by the machine gun\]= Mass of bullet \[\times \] Number of bullet fired per second \[= 10 g \times 10 bullet/sec = 100 g/sec = 0.1 kg/sec\] \[\therefore \,\,\,\,Thrust\,\,=\,\,\frac{udm}{dt}\,\,=\,\,500\times 0.1=50\,\,N\]You need to login to perform this action.
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